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<?php $array = Array ( 0 => Array ( 'id' => 1, 'column2' => 'value2', 'column3' => 'value3', 'column4' => 'value4', 'column5' => 'value5' ), 1 => Array ( 'id' => 1, 'column2' => 'value2', 'column3' => 'value3', 'column4' => 'value4', 'column5' => 'value5' ), 2 => Array ( 'id' => 2, 'column2' => 'value2', 'column3' => 'value3', 'column4' => 'value4', 'column5' => 'value5' ), ); $keys = array_keys(array_column($array, 'column2'), value2); //$new_array = array_map(function($k) use ($array){return $array[$k];}, $keys); print_r($keys);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Undefined constant "value2" in /in/OS2hR:10 Stack trace: #0 {main} thrown in /in/OS2hR on line 10
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Undefined constant "value2" in /in/OS2hR:10 Stack trace: #0 {main} thrown in /in/OS2hR on line 10
Process exited with code 255.
Output for 7.3.24 - 7.3.33, 7.4.12 - 7.4.33
Warning: Use of undefined constant value2 - assumed 'value2' (this will throw an Error in a future version of PHP) in /in/OS2hR on line 10 Array ( [0] => 0 [1] => 1 [2] => 2 )
preferences:
139.96 ms | 402 KiB | 118 Q