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run code in 300+ PHP versions simultaneously
<?php $numbers = array("1","3","5","6","12","13","15","20","24","28","32","33","34","42","47","49","50","54","59","79"); $intersect = array_fill_keys(array_diff(range(1, 80), $numbers), null); var_dump($intersect);
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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(60) { [2]=> NULL [4]=> NULL [7]=> NULL [8]=> NULL [9]=> NULL [10]=> NULL [11]=> NULL [14]=> NULL [16]=> NULL [17]=> NULL [18]=> NULL [19]=> NULL [21]=> NULL [22]=> NULL [23]=> NULL [25]=> NULL [26]=> NULL [27]=> NULL [29]=> NULL [30]=> NULL [31]=> NULL [35]=> NULL [36]=> NULL [37]=> NULL [38]=> NULL [39]=> NULL [40]=> NULL [41]=> NULL [43]=> NULL [44]=> NULL [45]=> NULL [46]=> NULL [48]=> NULL [51]=> NULL [52]=> NULL [53]=> NULL [55]=> NULL [56]=> NULL [57]=> NULL [58]=> NULL [60]=> NULL [61]=> NULL [62]=> NULL [63]=> NULL [64]=> NULL [65]=> NULL [66]=> NULL [67]=> NULL [68]=> NULL [69]=> NULL [70]=> NULL [71]=> NULL [72]=> NULL [73]=> NULL [74]=> NULL [75]=> NULL [76]=> NULL [77]=> NULL [78]=> NULL [80]=> NULL }
preferences:
200.43 ms | 406 KiB | 196 Q