<?php $vals = ['3 fish', ' +01.0001 ', ' +01.0000000 ', true, false, null, 1e8]; foreach ($vals as $val) { printf("is %s an int? %s == %s --> %s\n", var_export($val, true), var_export((string)(int)$val, true), var_export(trim($val), true), var_export((string)(int)$val == trim($val), true) ); }
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