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43 lines
762 B
PHP
43 lines
762 B
PHP
--TEST--
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Study regex
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--FILE--
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<?php
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var_dump(preg_match('/(?:(?:(?:(?:(?:(.))))))/ S', 'aeiou', $dump));
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var_dump($dump[1]);
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var_dump(preg_match('/(?:(?:(?:(?:(?:(.))))))/', 'aeiou', $dump));
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var_dump($dump[1]);
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var_dump(preg_match('/(?>..)((?:(?>.)|.|.|.|u))/S', 'aeiou', $dump));
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var_dump($dump[1]);
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// try to trigger usual "match known text" optimization
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var_dump(preg_match('/^aeiou$/S', 'aeiou', $dump));
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var_dump($dump[0]);
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var_dump(preg_match('/aeiou/S', 'aeiou', $dump));
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var_dump($dump[0]);
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?>
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--EXPECT--
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int(1)
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string(1) "a"
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int(1)
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string(1) "a"
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int(1)
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string(1) "i"
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int(1)
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string(5) "aeiou"
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int(1)
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string(5) "aeiou"
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--UEXPECT--
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int(1)
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unicode(1) "a"
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int(1)
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unicode(1) "a"
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int(1)
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unicode(1) "i"
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int(1)
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unicode(5) "aeiou"
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int(1)
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unicode(5) "aeiou"
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