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d65d3f5298
Don't expose references in debug_backtrace() or exception traces. This is regardless of whether the argument is by-reference or not. As a side-effect of this change, exception traces may now acquire the interior value of a reference, which may be unexpected for some internal functions. This is what necessitated the change in the spl_array sort implementation.
100 lines
1.4 KiB
PHP
100 lines
1.4 KiB
PHP
--TEST--
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Bug #70547 (unsetting function variables corrupts backtrace)
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--FILE--
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<?php
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function brokenTrace($arg1, &$arg2, $arg3){
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backtraceWrapper();
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var_dump(func_get_args());
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unset($arg3);
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var_dump(func_get_arg(0));
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var_dump(func_get_arg(1));
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var_dump(func_get_arg(2));
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var_dump(func_get_arg(3));
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backtraceWrapper();
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unset($arg1);
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var_dump(func_get_args());
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backtraceWrapper();
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unset($arg2);
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backtraceWrapper();
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var_dump(func_get_arg(0));
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var_dump(func_get_arg(1));
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var_dump(func_get_arg(2));
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var_dump(func_get_arg(3));
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}
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$arg2 = "2nd";
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brokenTrace("1st", $arg2, "3th", "4th");
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function backtraceWrapper(){
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$bt = debug_backtrace();
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var_dump($bt[1]['args']);
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}
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?>
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--EXPECT--
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array(4) {
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[0]=>
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string(3) "1st"
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[1]=>
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string(3) "2nd"
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[2]=>
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string(3) "3th"
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[3]=>
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string(3) "4th"
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}
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array(4) {
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[0]=>
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string(3) "1st"
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[1]=>
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string(3) "2nd"
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[2]=>
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string(3) "3th"
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[3]=>
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string(3) "4th"
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}
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string(3) "1st"
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string(3) "2nd"
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NULL
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string(3) "4th"
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array(4) {
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[0]=>
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string(3) "1st"
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[1]=>
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string(3) "2nd"
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[2]=>
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NULL
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[3]=>
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string(3) "4th"
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}
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array(4) {
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[0]=>
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NULL
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[1]=>
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string(3) "2nd"
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[2]=>
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NULL
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[3]=>
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string(3) "4th"
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}
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array(4) {
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[0]=>
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NULL
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[1]=>
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string(3) "2nd"
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[2]=>
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NULL
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[3]=>
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string(3) "4th"
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}
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array(4) {
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[0]=>
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NULL
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[1]=>
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NULL
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[2]=>
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NULL
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[3]=>
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string(3) "4th"
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}
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NULL
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NULL
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NULL
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string(3) "4th"
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