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<?php $a = [7 => "value", "key" => "value2"]; foreach ($a as $k => &$v) { $v .= "a"; } $result = [key($a)=>array_shift($a)]; // wrong $a = [7 => "value", "key" => "value2"]; var_dump($result); foreach ($a as $k => &$v) { $v .= "a"; } reset($a); $result = [key($a)=>array_shift($a)]; // correct var_dump($result);
Output for 7.0.0 - 7.0.24, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(1) { [7]=> string(6) "valuea" } array(1) { [7]=> string(6) "valuea" }
preferences:
103.19 ms | 1628 KiB | 4 Q