What does the following code produce in PHP 5.0+
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1 2 3 4 5 6 |
$var = (object) array('0'=>'hello world');
if(isset($var[0])) {
die('Is Set');
}
die('Not Set'); |
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ANSWER:
Fatal Error!
In PHP trying to access an object property using array syntax throws a fatal error, however, trying to access an array key/value using object syntax will return false on isset!
Just remember anytime you have a variable that can be either an object or an array to check using the appropriate functions (is_object, is_array) before trying to access its properties.
.PHP Manual:
http://php.net/manual/en/function.isset.php
