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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) ?>
Output for 7.2.0
Warning: Use of undefined constant intval - assumed 'intval' (this will throw an Error in a future version of PHP) in /in/O8ngc 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) }
Output for 4.3.0 - 7.1.10
Notice: Use of undefined constant intval - assumed 'intval' in /in/O8ngc 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) }