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<?php $main_array = array( 1 => array('ceva'), 2 => array('cevaa'), 21 => 3 ); $sub_array = array( 1 => array('ceva'), 2 => array(1, 2), 12 => 2 ); echo '<pre>'; var_dump(array_diff_assoc($main_array, $sub_array)); echo '</pre>';
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<pre> Warning: Array to string conversion in /in/6ujX5 on line 16 Warning: Array to string conversion in /in/6ujX5 on line 16 Warning: Array to string conversion in /in/6ujX5 on line 16 Warning: Array to string conversion in /in/6ujX5 on line 16 array(1) { [21]=> int(3) } </pre>
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
<pre> Notice: Array to string conversion in /in/6ujX5 on line 16 Notice: Array to string conversion in /in/6ujX5 on line 16 Notice: Array to string conversion in /in/6ujX5 on line 16 Notice: Array to string conversion in /in/6ujX5 on line 16 array(1) { [21]=> int(3) } </pre>
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, 7.3.32 - 7.3.33, 7.4.26
<pre>array(1) { [21]=> int(3) } </pre>

preferences:
211.18 ms | 403 KiB | 363 Q