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<?php $sa=array(60 => array(1,5,6)); //print_r($sa); if($sa[40]!== "undefined"){echo implode(",",$sa);}
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
Warning: Undefined array key 40 in /in/0fmK9 on line 4 Warning: Array to string conversion in /in/0fmK9 on line 4 Array
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 7.4.33
Notice: Undefined offset: 40 in /in/0fmK9 on line 4 Notice: Array to string conversion in /in/0fmK9 on line 4 Array
Output for 7.3.32 - 7.3.33
Array
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
Notice: Undefined offset: 40 in /in/0fmK9 on line 4 Notice: Array to string conversion in /in/0fmK9 on line 4 Array
preferences:
231.62 ms | 403 KiB | 371 Q