<?php $subject = 'text 1234'; $regexes = [ 'syntax_error' => '`[0-9`', 'incomplete' => '`[0-9', // Missing close delimiter. ]; foreach ($regexes as $name => $pattern) { echo PHP_EOL, 'Currently testing regex: "', $name, '"', PHP_EOL; echo 'preg_filter: ', PHP_EOL; preg_filter($pattern, '', $subject); echo 'preg_grep: ', PHP_EOL; preg_grep($pattern, [$subject]); echo 'preg_match_all: ', PHP_EOL; preg_match_all($pattern, $subject); echo 'preg_match: ', PHP_EOL; preg_match($pattern, $subject); if (function_exists('preg_replace_callback_array')) { echo 'preg_replace_callback_array: ', PHP_EOL; preg_replace_callback_array([$pattern => function() {return '';}], $subject); } echo 'preg_replace_callback: ', PHP_EOL; preg_replace_callback($pattern, function() {return '';}, $subject); echo 'preg_replace: ', PHP_EOL; preg_replace($pattern, '', $subject); echo 'preg_split: ', PHP_EOL; preg_split($pattern, $subject); }
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Value for `_results` contains invalid data `array`