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93 lines
2.0 KiB
PHP
93 lines
2.0 KiB
PHP
--TEST--
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Test trim() function
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--FILE--
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<?php
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/* Prototype: string trim( string str [,string charlist] )
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* Strip whitespace (or other characters) from the beginning and end of a string.
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*/
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/* trim with unset/null/boolean variable - retuns an empty string */
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echo "\n";
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$null_var = NULL;
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var_dump( trim($null_var) );
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$null_var = "";
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var_dump( trim($null_var) );
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$null_var = 0;
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var_dump( trim($null_var) );
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$bool_val = true;
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var_dump( trim($null_var) );
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/* second arguemnt charlist as null - does not trim any white spaces */
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var_dump( trim("\ttesting trim", "") );
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var_dump( trim(" \ttesting trim ", NULL) );
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var_dump( trim("\ttesting trim ", true) );
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/* Testing error conditions */
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echo "\n*** Testing error conditions ***\n";
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//Zero arguments
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var_dump( trim() );
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// More than expected number of args */
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var_dump( trim("\tstring\n", "\t\n", $null_var) );
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var_dump( trim(NULL, "", NULL ) );
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/* Use of class and objects */
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echo "\n*** Testing with OBJECTS ***\n";
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class string1
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{
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public function __toString() {
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return "Object";
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}
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}
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$obj = new string1;
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var_dump( trim($obj, "Ot") );
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/* String with embedded NULL */
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echo "\n*** Testing with String with embedded NULL ***\n";
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var_dump( trim("\x0n1234\x0005678\x0000efgh\xijkl\x0n1", "\x0n1") );
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/* heredoc string */
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$str = <<<EOD
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us
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ing heredoc string
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EOD;
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echo "\n*** Testing with heredoc string ***\n";
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var_dump( trim($str, "us\ning") );
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echo "\nDone";
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?>
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--EXPECTF--
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string(0) ""
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string(0) ""
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string(1) "0"
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string(1) "0"
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string(13) " testing trim"
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string(17) " testing trim "
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string(15) " testing trim "
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*** Testing error conditions ***
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Warning: trim() expects at least 1 parameter, 0 given in %s on line %d
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NULL
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Warning: trim() expects at most 2 parameters, 3 given in %s on line %d
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NULL
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Warning: trim() expects at most 2 parameters, 3 given in %s on line %d
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NULL
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*** Testing with OBJECTS ***
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string(4) "bjec"
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*** Testing with String with embedded NULL ***
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string(22) "234 05678 00efgh\xijkl"
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*** Testing with heredoc string ***
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string(12) " heredoc str"
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Done
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