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<?php echo preg_match('/(\w+) (\w+)/', 'rodrigo capile', $m); var_dump($m); echo preg_match('/(\w+) (\w+)/', 'rodrigo capile rodrigo capile rodrigo capile', $m); var_dump($m); echo preg_match_all('/(\w+) (\w+)/', 'rodrigo capile rodrigo capile rodrigo capile', $m); var_dump($m); echo preg_replace_callback('/(\w+) (\w+)/', function($matches) {return strtoupper(matches);},'rodrigo capile rodrigo capile rodrigo capile');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(7) "rodrigo" [2]=> string(6) "capile" } 1array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(7) "rodrigo" [2]=> string(6) "capile" } 3array(3) { [0]=> array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(14) "rodrigo capile" [2]=> string(14) "rodrigo capile" } [1]=> array(3) { [0]=> string(7) "rodrigo" [1]=> string(7) "rodrigo" [2]=> string(7) "rodrigo" } [2]=> array(3) { [0]=> string(6) "capile" [1]=> string(6) "capile" [2]=> string(6) "capile" } } Fatal error: Uncaught Error: Undefined constant "matches" in /in/RCZ22:12 Stack trace: #0 [internal function]: {closure}(Array) #1 /in/RCZ22(12): preg_replace_callback('/(\\w+) (\\w+)/', Object(Closure), 'rodrigo capile ...') #2 {main} thrown in /in/RCZ22 on line 12
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
1array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(7) "rodrigo" [2]=> string(6) "capile" } 1array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(7) "rodrigo" [2]=> string(6) "capile" } 3array(3) { [0]=> array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(14) "rodrigo capile" [2]=> string(14) "rodrigo capile" } [1]=> array(3) { [0]=> string(7) "rodrigo" [1]=> string(7) "rodrigo" [2]=> string(7) "rodrigo" } [2]=> array(3) { [0]=> string(6) "capile" [1]=> string(6) "capile" [2]=> string(6) "capile" } } Warning: Use of undefined constant matches - assumed 'matches' (this will throw an Error in a future version of PHP) in /in/RCZ22 on line 12 Warning: Use of undefined constant matches - assumed 'matches' (this will throw an Error in a future version of PHP) in /in/RCZ22 on line 12 Warning: Use of undefined constant matches - assumed 'matches' (this will throw an Error in a future version of PHP) in /in/RCZ22 on line 12 MATCHES MATCHES MATCHES
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
1array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(7) "rodrigo" [2]=> string(6) "capile" } 1array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(7) "rodrigo" [2]=> string(6) "capile" } 3array(3) { [0]=> array(3) { [0]=> string(14) "rodrigo capile" [1]=> string(14) "rodrigo capile" [2]=> string(14) "rodrigo capile" } [1]=> array(3) { [0]=> string(7) "rodrigo" [1]=> string(7) "rodrigo" [2]=> string(7) "rodrigo" } [2]=> array(3) { [0]=> string(6) "capile" [1]=> string(6) "capile" [2]=> string(6) "capile" } } Notice: Use of undefined constant matches - assumed 'matches' in /in/RCZ22 on line 12 Notice: Use of undefined constant matches - assumed 'matches' in /in/RCZ22 on line 12 Notice: Use of undefined constant matches - assumed 'matches' in /in/RCZ22 on line 12 MATCHES MATCHES MATCHES
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/RCZ22 on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/RCZ22 on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/RCZ22 on line 12
Process exited with code 255.
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