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<?php $subject = 'Aaaafaba Bbab'; $ret = preg_replace_callback( '~[a]+~i', function ($match) { var_dump($match); echo strlen($match[0]), ' matches for "a" found', PHP_EOL; }, $subject ); var_dump($ret); var_dump($subject); $ret = preg_replace_callback_array( [ '~[a]+~i' => function ($match) { echo strlen($match[0]), ' matches for "a" found', PHP_EOL; }, '~[b]+~i' => function ($match) { echo strlen($match[0]), ' matches for "b" found', PHP_EOL; } ], $subject ); var_dump($ret); var_dump($subject);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(1) { [0]=> string(4) "Aaaa" } 4 matches for "a" found array(1) { [0]=> string(1) "a" } 1 matches for "a" found array(1) { [0]=> string(1) "a" } 1 matches for "a" found array(1) { [0]=> string(1) "a" } 1 matches for "a" found string(6) "fb Bbb" string(13) "Aaaafaba Bbab" 4 matches for "a" found 1 matches for "a" found 1 matches for "a" found 1 matches for "a" found 1 matches for "b" found 3 matches for "b" found string(2) "f " string(13) "Aaaafaba Bbab"
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
array(1) { [0]=> string(4) "Aaaa" } 4 matches for "a" found array(1) { [0]=> string(1) "a" } 1 matches for "a" found array(1) { [0]=> string(1) "a" } 1 matches for "a" found array(1) { [0]=> string(1) "a" } 1 matches for "a" found string(6) "fb Bbb" string(13) "Aaaafaba Bbab" Fatal error: Call to undefined function preg_replace_callback_array() in /in/evvYQ on line 17
Process exited with code 255.
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