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<?php function format(&$collection) { foreach($collection as $k => $v) { $collection["prefix_{$k}"] = $v; } } $collection = array('a' => 1, 'b' => 2, 'c' => 3); format($collection); var_dump($collection);
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(6) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) ["prefix_a"]=> int(1) ["prefix_b"]=> int(2) ["prefix_c"]=> int(3) }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 14606 bytes) in /in/tPMTZ on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 14506 bytes) in /in/tPMTZ on line 4
Process exited with code 255.
preferences:
256.23 ms | 401 KiB | 407 Q