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run code in 150+ php & hhvm versions
Bugs & Features
<?php function regexp($string, $pattern) { return preg_match('/'.$pattern.'/', $string); } function getLeftDelimiter($string, $pattern) { $result = ''; while(1) { $current = $string; $position = strlen($string); while($position && regexp($current, $pattern)) { $position--; $current = substr($current, 0, -1); } $current = substr($string, 0, $position+1); if(regexp($current, '^('.$pattern.')$')) { $result .= $current; $string = substr($string, $position+1); } else { return $result; } } } function getRightDelimiter($string, $pattern) { $result = ''; while(1) { $current = $string; $position = 0; while($position<strlen($string) && regexp($current, $pattern)) { $position++; $current = substr($current, 1); } $current = substr($string, $position-1); if(regexp($current, '^('.$pattern.')$')) { $result = $current.$result; $string = substr($string, 0, $position-1); } else { return $result; } } } function getLeftChunk($string, $pattern) { $result = ''; $current = ''; $position= 0; while($position<strlen($string) && !regexp($current, $pattern)) { $position++; $current = substr($string, 0, $position); } $delimiter = getRightDelimiter($current, $pattern); return substr($current, 0, strlen($current)-strlen($delimiter)); } function regexpSplit($string, $pattern) { $result = []; $i = 0; while($string && ++$i<10) { $delimiter = getLeftDelimiter($string, $pattern); if($delimiter==$string) { break; } $string = substr($string, strlen($delimiter)); $chunk = getLeftChunk($string, $pattern); $string = substr($string, strlen($chunk)); $result[] = $chunk; } return $result; } $string = 'tbarbarfob12baz 56bar'; $pattern = 'bar|baz'; var_dump(regexpSplit($string, $pattern));
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { [0]=> string(1) "t" [1]=> string(5) "fob12" [2]=> string(3) " 56" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/81W3V on line 74
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/81W3V on line 74
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/81W3V on line 74
Process exited with code 255.