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run code in 300+ PHP versions simultaneously
<?php $array1 = array( 'k' => array( 2 => 100, 98 => 200, ) ); $array2 = array( 'k' => array( 64 => 300 ) ); $array3 = array_merge_recursive( $array1, $array2 ); echo '<pre>'; var_dump( $array3 ); echo 'count: '.count( $array3['k'] );
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.1.20 - 7.1.33, 7.2.8 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
<pre>array(1) { ["k"]=> array(3) { [2]=> int(100) [98]=> int(200) [99]=> int(300) } } count: 3
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.19, 7.2.0 - 7.2.7
<pre>array(1) { ["k"]=> array(3) { [2]=> int(100) [98]=> int(200) [2]=> int(300) } } count: 3

preferences:
61.13 ms | 407 KiB | 5 Q