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When a PCRE execution error occurs (e.g. malformed UTF-8 with /u modifier), preg_grep() was returning a partial result array containing only the entries processed before the error. All other preg_* functions return false on execution errors. After the match loop, check PCRE_G(error_code) and if an error occurred, destroy the partial array and return false instead. Fixes GH-11936
45 lines
1.3 KiB
PHP
45 lines
1.3 KiB
PHP
--TEST--
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preg_grep() returns false on match execution error (e.g. malformed UTF-8)
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--FILE--
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<?php
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// preg_grep should return false when a match execution error occurs,
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// consistent with preg_match behavior. See GH-11936.
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// Test 1: preg_match returns false on malformed UTF-8 with /u modifier
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var_dump(preg_match('/.*/u', hex2bin('ff')));
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var_dump(preg_last_error() === PREG_BAD_UTF8_ERROR);
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// Test 2: preg_grep should also return false (not an empty/partial array)
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var_dump(preg_grep('/.*/u', [hex2bin('ff')]));
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var_dump(preg_last_error() === PREG_BAD_UTF8_ERROR);
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// Test 3: preg_grep with valid entries before the invalid one should
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// return false, not a partial array
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var_dump(preg_grep('/.*/u', ['foo', hex2bin('ff'), 'bar']));
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var_dump(preg_last_error() === PREG_BAD_UTF8_ERROR);
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// Test 4: preg_grep with PREG_GREP_INVERT should also return false on error
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var_dump(preg_grep('/.*/u', [hex2bin('ff')], PREG_GREP_INVERT));
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var_dump(preg_last_error() === PREG_BAD_UTF8_ERROR);
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// Test 5: preg_grep without error still returns an array
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var_dump(preg_grep('/.*/u', ['foo', 'bar']));
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var_dump(preg_last_error() === PREG_NO_ERROR);
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?>
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--EXPECTF--
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bool(false)
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bool(true)
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bool(false)
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bool(true)
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bool(false)
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bool(true)
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bool(false)
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bool(true)
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array(2) {
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[0]=>
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string(3) "foo"
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[1]=>
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string(3) "bar"
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}
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bool(true)
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