PHP Type Juggling
Type juggling refers to PHP’s ability to automatically change the data types of variables depending on the context in which they are used.
Example :
In the following example, the string “1” is added to the integer value 1. While this would cause an error in many other programming languages, PHP automatically converts the string into a matching integer value (here: 1) and calculates the result (here: 1 + 1 = 2).
<?php
$a = (int)1;
$b = (string)"1";
$c = $a + $b;
var_dump($a, $b, $c);
?>
Output:
int(1) string(1) "1" int(2)
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