PHP Parameterized functions are the functions with parameters. You can pass any number of parameters inside a function. These passed parameters act as variables inside your function.

**PHP Function With One Argument :**

In this example we will see, how we can pass single parameter to function.

<?php // single argument function function add($x) { $sum = $x + $x; echo "Addtion of two numbers is $sum <br>"; } // single argument function function multiply($x) { $sum = $x * $x; echo "multiplication of two numbers is $sum <br>"; } add(10); multiply(10); ?>

**Output :**

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**PHP Function With Two Arguments :**

In this example we will see, how we can pass two arguments/parameters to function.

<?php // two argument function function add($x,$y) { $sum = $x + $y; echo "Addtion of two numbers is $sum <br>"; } // two argument function function multiply($x,$y) { $sum = $x * $y; echo "multiplication of two numbers is $sum <br>"; } add(10,30); multiply(10,20); ?>

**Output:**

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Addtion of two numbers is 40

multiplication of two numbers is 200

**NOTE:**

Similarly, we can use N numbers of parameters depending upon the requirement and Programming logic.

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