note 40818 added to control-structures

From: Date: Mon, 15 Mar 2004 22:15:12 +0000
Subject: note 40818 added to control-structures
Groups: php.notes 
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A bit of advice about using == in if statements: Instead of if ($a == 0 ) ... write if (0 == $a) ... Clearly, the order doesn't matter. However, if you inadventently were to write if ($a = 0) // Note the assignment! your test would always return false! That's because you've assigned the value 0 to $a, then tested that value, and 0 is false. On the other hand, if you wrote if (0 = $a) ... the processor will give you an error, since you can't assign a value to a constant. ---- Manual Page -- http://www.php.net/manual/en/control-structures.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+40818 Delete -- http://master.php.net/manage/user-notes.php?action=delete+40818&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+40818&report=yes Search -- http://master.php.net/manage/user-notes.php

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