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<?php $string = '763:74 74:274 177:474'; $result = []; preg_replace_callback('/(\d+):(\d+)/m',function($m,&$result){ $result[$m[1]] = $m[2]; },$string); print_r($result); echo $result[74]."\n"; echo $result[763]."\n";
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/17upY:8 Stack trace: #0 [internal function]: {closure}(Array) #1 /in/17upY(8): preg_replace_callback('/(\\d+):(\\d+)/m', Object(Closure), '763:74\n74:274\n1...') #2 {main} thrown in /in/17upY on line 8
Process exited with code 255.
Output for 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
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/17upY:8 Stack trace: #0 [internal function]: {closure}(Array) #1 /in/17upY(10): preg_replace_callback('/(\\d+):(\\d+)/m', Object(Closure), '763:74\n74:274\n1...') #2 {main} thrown in /in/17upY on line 8
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Warning: Missing argument 2 for {closure}() in /in/17upY on line 8 Warning: Missing argument 2 for {closure}() in /in/17upY on line 8 Warning: Missing argument 2 for {closure}() in /in/17upY on line 8 Array ( ) Notice: Undefined offset: 74 in /in/17upY on line 13 Notice: Undefined offset: 763 in /in/17upY on line 14

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