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run code in 500+ PHP versions simultaneously
<?php $string = '123a'; $integer = -$string; // warning! $integer = (int) $string; $integer = -$integer; // too long! $integer = -(int)$string; // alright ! $integer = @-(int)$string; // also possible ! $integer = @-@(int)@$string; // too much?
Output for git.master_jit, git.master
Warning: A non-numeric value encountered in /in/m6F8G on line 5

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