I can understand the part of ternary operator, still I don't understand the first part where the null is assigned to the $offset variable
$offset = null == $offset ? 0 : $offset;
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3read like `$offset = (null == $offset) ? 0 : $offset;` ,`?`ternary operator and if condition is true than 0 will be assigned to `$offset` else `$offest` – NullPoiиteя Sep 11 '14 at 08:10
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thats weird `$offset` is not defined yet, should be isset – Kevin Sep 11 '14 at 08:11
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The comparison operator has higher precedence than assignment, so the comparison (and indeed the whole ternary check) executes before any assignment – Mark Baker Sep 11 '14 at 08:12
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Thanks everyone, if someone add an answer I can accept it – Carlo Sep 11 '14 at 08:14
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question is closed as duplicate so its already answered in base question – NullPoiиteя Sep 11 '14 at 08:17