mirror of
https://github.com/php/php-src.git
synced 2024-09-25 03:47:26 +00:00
493 lines
19 KiB
C
493 lines
19 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2013 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Felipe Pena <felipe@php.net> |
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| Authors: Joe Watkins <joe.watkins@live.co.uk> |
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+----------------------------------------------------------------------+
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*/
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#include "phpdbg.h"
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#include "phpdbg_help.h"
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#include "phpdbg_print.h"
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#include "phpdbg_utils.h"
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#include "phpdbg_break.h"
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#include "phpdbg_list.h"
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#include "phpdbg_info.h"
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ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
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PHPDBG_HELP(exec) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("\tWill attempt execution, if compilation has not yet taken place, it occurs now");
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phpdbg_writeln("The execution context must be set before execution can take place");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(step) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("You can enable and disable stepping at any phpdbg prompt during execution");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sstepping 1", PROMPT);
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phpdbg_writeln("\t%ss 1", PROMPT);
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phpdbg_writeln("\tWill enable stepping");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("While stepping is enabled you are presented with a prompt after the execution of each opcode");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(next) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_write("Step back into the vm and execute the next opcode");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%snext", PROMPT);
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phpdbg_writeln("\t%sn", PROMPT);
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phpdbg_writeln("\tWill cause control to be passed back to the vm, continuing execution");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: is only useful while executing");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(until) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Step back into the vm, skipping breakpoints until the next source line");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%suntil", PROMPT);
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phpdbg_writeln("\t%su", PROMPT);
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phpdbg_writeln("\tWill cause control to be passed back to the vm, continuing execution");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: is only useful while executing");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(finish) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Step back into the vm, skipping breakpoints until past the end of the current stack");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sfinish", PROMPT);
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phpdbg_writeln("\t%sF", PROMPT);
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phpdbg_writeln("\tWill cause control to be passed back to the vm, continuing execution");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: this allows all breakpoints that would otherwise break execution in the current scope to be skipped");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(leave) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Step back into the vm, skipping breakpoints until the current stack is returning");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sleave", PROMPT);
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phpdbg_writeln("\t%sL", PROMPT);
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phpdbg_writeln("\tWill cause a break when instructed to leave the current context");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: this allows inspection of the return value before it is returned");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(compile) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Pre-compilation of the execution context provides the opportunity to inspect opcodes before execution");
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phpdbg_writeln("The execution context must be set for compilation to succeed");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%scompile", PROMPT);
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phpdbg_writeln("\t%sc", PROMPT);
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phpdbg_writeln("\tWill compile the current execution context, populating class/function/constant/etc tables");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: It is a good idea to clean the environment between each compilation");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(print) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("By default, print will show information about the current execution context");
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phpdbg_writeln("Other printing commands give access to instruction information");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sprint class \\my\\class", PROMPT);
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phpdbg_writeln("\t%sp c \\my\\class", PROMPT);
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phpdbg_writeln("\tWill print the instructions for the methods in \\my\\class");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sprint method \\my\\class::method", PROMPT);
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phpdbg_writeln("\t%sp m \\my\\class::method", PROMPT);
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phpdbg_writeln("\tWill print the instructions for \\my\\class::method");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sprint func .getSomething", PROMPT);
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phpdbg_writeln("\t%sp f .getSomething", PROMPT);
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phpdbg_writeln("\tWill print the instructions for ::getSomething in the active scope");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sprint func my_function", PROMPT);
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phpdbg_writeln("\t%sp f my_function", PROMPT);
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phpdbg_writeln("\tWill print the instructions for the global function my_function");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sprint opline", PROMPT);
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phpdbg_writeln("\t%sp o", PROMPT);
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phpdbg_writeln("\tWill print the instruction for the current opline");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sprint exec", PROMPT);
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phpdbg_writeln("\t%sp e", PROMPT);
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phpdbg_writeln("\tWill print the instructions for the execution context");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sprint stack", PROMPT);
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phpdbg_writeln("\t%sp s", PROMPT);
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phpdbg_writeln("\tWill print the instructions for the current stack");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Specific printers loaded are show below:");
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phpdbg_notice("Commands");
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{
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const phpdbg_command_t *print_command = phpdbg_print_commands;
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phpdbg_writeln("\tAlias\tCommand\t\tPurpose");
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while (print_command && print_command->name) {
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if (print_command->alias) {
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phpdbg_writeln("\t[%c]\t%s\t\t%s", print_command->alias, print_command->name, print_command->tip);
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} else phpdbg_writeln("\t[ ]\t%s\t\t%s", print_command->name, print_command->tip);
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++print_command;
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}
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}
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(run) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Execute the current context inside the phpdbg vm");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%srun", PROMPT);
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phpdbg_writeln("\t%sr", PROMPT);
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phpdbg_writeln("\tWill cause execution of the context, if it is set.");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: The execution context must be set, but not necessarily compiled before execution occurs");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(eval) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Access to eval() allows you to change the environment during execution, careful though !!");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%seval $variable", PROMPT);
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phpdbg_writeln("\t%sE $variable", PROMPT);
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phpdbg_writeln("\tWill print_r($variable) on the console, if it is defined");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%seval $variable = \"Hello phpdbg :)\"", PROMPT);
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phpdbg_writeln("\t%sE $variable = \"Hello phpdbg :)\"", PROMPT);
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phpdbg_writeln("\tWill set $variable in the current scope");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: eval() will always show the result; do not prefix the code with \"return\"");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(break) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Setting a breakpoint stops execution at a specific stage");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sbreak [file] test.php:1", PROMPT);
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phpdbg_writeln("\t%sb [f] test.php:1", PROMPT);
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phpdbg_writeln("\tWill break execution on line 1 of test.php");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sbreak [func] my_function", PROMPT);
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phpdbg_writeln("\t%sb [f] my_function", PROMPT);
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phpdbg_writeln("\tWill break execution on entry to my_function");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sbreak [method] \\my\\class::method", PROMPT);
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phpdbg_writeln("\t%sb [m] \\my\\class::method", PROMPT);
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phpdbg_writeln("\tWill break execution on entry to \\my\\class::method");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sbreak [address] 0x7ff68f570e08", PROMPT);
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phpdbg_writeln("\t%sb [a] 0x7ff68f570e08", PROMPT);
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phpdbg_writeln("\tWill break at the opline with the address provided (addresses are shown during execution)");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sbreak [lineno] 200", PROMPT);
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phpdbg_writeln("\t%sb [l] 200", PROMPT);
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phpdbg_writeln("\tWill break at line 200 of the currently executing file");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%sbreak on ($expression == true)", PROMPT);
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phpdbg_writeln("\t%sb on ($expression == true)", PROMPT);
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phpdbg_writeln("\tWill break when the condition evaluates to true");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: An address is only valid for the current compilation");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("The parameters enclosed by [] are usually optional, but help avoid ambigious commands");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Specific breakers loaded are show below:");
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phpdbg_notice("Commands");
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{
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const phpdbg_command_t *break_command = phpdbg_break_commands;
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phpdbg_writeln("\tAlias\tCommand\t\tPurpose");
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while (break_command && break_command->name) {
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if (break_command->alias) {
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phpdbg_writeln("\t[%c]\t%s\t\t%s", break_command->alias, break_command->name, break_command->tip);
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} else phpdbg_writeln("\t[ ]\t%s\t\t%s", break_command->name, break_command->tip);
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++break_command;
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}
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}
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phpdbg_writeln("Note: Conditional breaks are costly, use them sparingly !");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(clean) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("While debugging you may experience errors because of attempts to redeclare classes, constants or functions");
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phpdbg_writeln("Cleaning the environment cleans these tables, so that files can be recompiled without exiting phpdbg");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(clear) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Clearing breakpoints means you can once again run code without interruption");
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phpdbg_writeln("Note: all breakpoints are lost; be sure debugging is complete before clearing");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(info) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("info commands provide quick access to various types of information about the PHP environment");
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phpdbg_writeln("Specific info commands are show below:");
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phpdbg_notice("Commands");
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{
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const phpdbg_command_t *info_command = phpdbg_info_commands;
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phpdbg_writeln("\tAlias\tCommand\t\tPurpose");
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while (info_command && info_command->name) {
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if (info_command->alias) {
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phpdbg_writeln("\t[%c]\t%s\t\t%s", info_command->alias, info_command->name, info_command->tip);
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} else phpdbg_writeln("\t[ ]\t%s\t\t%s", info_command->name, info_command->tip);
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++info_command;
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}
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}
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(quiet) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("Setting quietness on will stop the OPLINE output during execution");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%squiet 1", PROMPT);
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phpdbg_writeln("\t%sQ 1", PROMPT);
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phpdbg_writeln("\tWill silence OPLINE output, while");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%squiet 0", PROMPT);
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phpdbg_writeln("\t%sQ 0", PROMPT);
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phpdbg_writeln("\tWill enable OPLINE output again");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: Quietness is disabled automatically while stepping");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(back) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("The backtrace is built with the default debug backtrace functionality");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sback 5", PROMPT);
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phpdbg_writeln("\t%st 5", PROMPT);
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phpdbg_writeln("\tWill limit the number of frames to 5, the default is no limit");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: it is not necessary for an exception to be thrown to show a backtrace");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(frame) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("When viewing a backtrace, it is sometimes useful to jump to a frame in that trace");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%sframe 2", PROMPT);
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phpdbg_writeln("\t%sf 2", PROMPT);
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phpdbg_writeln("\tWill go to frame 2, temporarily affecting scope and allowing access to the variables in that frame");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: the current frame is restored when execution continues");
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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PHPDBG_HELP(list) /* {{{ */
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{
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phpdbg_help_header();
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phpdbg_writeln("The list command displays source code for the given argument");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%slist [lines] 2", PROMPT);
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phpdbg_writeln("\t%sl [l] 2", PROMPT);
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phpdbg_writeln("\tWill print next 2 lines from the current file");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%slist [func] my_function", PROMPT);
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phpdbg_writeln("\t%sl [f] my_function", PROMPT);
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phpdbg_writeln("\tWill print the source of the global function \"my_function\"");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%slist [func] .mine", PROMPT);
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phpdbg_writeln("\t%sl [f] .mine", PROMPT);
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phpdbg_writeln("\tWill print the source of the method \"mine\" from the active scope");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%slist [method] my::method", PROMPT);
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phpdbg_writeln("\t%sl [m] my::method", PROMPT);
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phpdbg_writeln("\tWill print the source of \"my::method\"");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("\t%slist c myClass", PROMPT);
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phpdbg_writeln("\t%sl c myClass", PROMPT);
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phpdbg_writeln("\tWill print the source of \"myClass\"");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Note: before listing functions you must have a populated function table, try compile !!");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("The parameters enclosed by [] are usually optional, but help avoid ambigious commands");
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phpdbg_writeln(EMPTY);
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phpdbg_writeln("Specific listers loaded are show below:");
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phpdbg_notice("Commands");
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{
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const phpdbg_command_t *list_command = phpdbg_list_commands;
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|
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phpdbg_writeln("\tAlias\tCommand\t\tPurpose");
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while (list_command && list_command->name) {
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if (list_command->alias) {
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phpdbg_writeln("\t[%c]\t%s\t\t%s", list_command->alias, list_command->name, list_command->tip);
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} else phpdbg_writeln("\t[ ]\t%s\t\t%s", list_command->name, list_command->tip);
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++list_command;
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}
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}
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phpdbg_help_footer();
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return SUCCESS;
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} /* }}} */
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|
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PHPDBG_HELP(oplog) /* {{{ */
|
|
{
|
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phpdbg_help_header();
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phpdbg_writeln("Even when quietness is enabled you may wish to save opline logs to a file");
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phpdbg_writeln("Setting a new oplog closes the previously open log");
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phpdbg_writeln("The log includes a high resolution timestamp on each entry");
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phpdbg_writeln(EMPTY);
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phpdbg_notice("Examples");
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phpdbg_writeln("\t%soplog /path/to/my.oplog", PROMPT);
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phpdbg_writeln("\t%sO /path/to/my.oplog", PROMPT);
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phpdbg_writeln("\tWill open the file /path/to/my.oplog for writing, creating it if it does not exist");
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phpdbg_writeln(EMPTY);
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|
phpdbg_writeln("\t%soplog 0", PROMPT);
|
|
phpdbg_writeln("\t%sO 0", PROMPT);
|
|
phpdbg_writeln("\tWill close the currently open log file, disabling oplog");
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_writeln("Note: upon failure to open a new oplog, the last oplog is held open");
|
|
phpdbg_help_footer();
|
|
return SUCCESS;
|
|
}
|
|
|
|
PHPDBG_HELP(register) /* {{{ */
|
|
{
|
|
phpdbg_help_header();
|
|
phpdbg_writeln("Register any global function for use as a command in phpdbg console");
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_notice("Examples");
|
|
phpdbg_writeln("\t%sregister scandir", PROMPT);
|
|
phpdbg_writeln("\t%sR scandir", PROMPT);
|
|
phpdbg_writeln("\tWill register the scandir function for use in phpdbg");
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_writeln("Note: arguments passed as strings, return (if present) print_r'd on console");
|
|
if (zend_hash_num_elements(&PHPDBG_G(registered))) {
|
|
HashPosition position;
|
|
char *name = NULL;
|
|
zend_uint name_len = 0;
|
|
|
|
phpdbg_notice("Registered Functions (%d)", zend_hash_num_elements(&PHPDBG_G(registered)));
|
|
for (zend_hash_internal_pointer_reset_ex(&PHPDBG_G(registered), &position);
|
|
zend_hash_get_current_key_ex(&PHPDBG_G(registered), &name, &name_len, NULL, 1, &position) == HASH_KEY_IS_STRING;
|
|
zend_hash_move_forward_ex(&PHPDBG_G(registered), &position)) {
|
|
phpdbg_writeln("|-------> %s", name);
|
|
efree(name);
|
|
}
|
|
}
|
|
|
|
phpdbg_help_footer();
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
PHPDBG_HELP(shell) /* {{{ */
|
|
{
|
|
phpdbg_help_header();
|
|
phpdbg_writeln("Direct access to shell commands saves having to switch windows/consoles");
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_notice("Examples");
|
|
phpdbg_writeln("\t%sshell ls /usr/src/php-src", PROMPT);
|
|
phpdbg_writeln("\t%s- ls /usr/src/php-src", PROMPT);
|
|
phpdbg_writeln("\tWill execute ls /usr/src/php-src, displaying the output in the console");
|
|
phpdbg_writeln(EMPTY);
|
|
phpdbg_writeln("Note: read only commands please !");
|
|
phpdbg_help_footer();
|
|
return SUCCESS;
|
|
} /* }}} */
|
|
|
|
PHPDBG_HELP(options) /* {{{ */
|
|
{
|
|
phpdbg_help_header();
|
|
phpdbg_writeln("Below are the command line options supported by phpdbg");
|
|
phpdbg_notice("Command Line Options and Flags");
|
|
phpdbg_writeln(" -c\t-c/my/php.ini\t\tSet php.ini file to load");
|
|
phpdbg_writeln(" -d\t-dmemory_limit=4G\tSet a php.ini directive");
|
|
phpdbg_writeln(" -n\tN/A\t\t\tDisable default php.ini");
|
|
phpdbg_writeln(" -q\tN/A\t\t\tSupress welcome banner");
|
|
phpdbg_writeln(" -e\t-emytest.php\t\tSet execution context");
|
|
phpdbg_writeln(" -v\tN/A\t\t\tEnable oplog output");
|
|
phpdbg_writeln(" -s\tN/A\t\t\tEnable stepping");
|
|
phpdbg_writeln(" -b\tN/A\t\t\tDisable colour");
|
|
phpdbg_writeln(" -i\t-imy.init\t\tSet .phpdbginit file");
|
|
phpdbg_writeln(" -I\tN/A\t\t\tIgnore default .phpdbginit");
|
|
phpdbg_writeln(" -O\t-Omy.oplog\t\tSets oplog output file");
|
|
phpdbg_writeln(" -r\tN/A\t\t\tRun execution context");
|
|
phpdbg_writeln(" -E\tN/A\t\t\tEnable step through eval, careful !");
|
|
phpdbg_notice("Passing -rr will quit automatically after execution");
|
|
phpdbg_help_footer();
|
|
return SUCCESS;
|
|
} /* }}} */
|