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<?php $x=array( 1 => 'ghj', 2 => 234, 3 => 234.34, 4 => '123', 5 => 'as12345' ); $x2=$x; array_walk($x2,'intval'); $x = array_map(intval,$x); var_dump($x2,$x,intval('as12345')) ?>
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
Fatal error: Uncaught Error: Undefined constant "intval" in /in/X3Zuu:13 Stack trace: #0 {main} thrown in /in/X3Zuu on line 13
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant intval - assumed 'intval' (this will throw an Error in a future version of PHP) in /in/X3Zuu on line 13 array(5) { [1]=> string(3) "ghj" [2]=> int(234) [3]=> float(234.34) [4]=> string(3) "123" [5]=> string(7) "as12345" } array(5) { [1]=> int(0) [2]=> int(234) [3]=> int(234) [4]=> int(123) [5]=> int(0) } int(0)
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, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant intval - assumed 'intval' in /in/X3Zuu on line 13 array(5) { [1]=> string(3) "ghj" [2]=> int(234) [3]=> float(234.34) [4]=> string(3) "123" [5]=> string(7) "as12345" } array(5) { [1]=> int(0) [2]=> int(234) [3]=> int(234) [4]=> int(123) [5]=> int(0) } int(0)

preferences:
313.33 ms | 405 KiB | 459 Q