PHP - Passing an Argument to a Function in PHP

Home > PHP

Passing an Argument to a Function in PHP

Q

How To Pass an Argument to a Function? in PHP?

✍: FYIcenter.com

A

To pass an argument to a function, you need to:

Add an argument definition in the function definition.
Add a value as an argument when invoking the function.

Here is a PHP script on how to use arguments in a function():

<?php 
function f2c($f) {
  return ($f - 32.0)/1.8;
}
print("Celsius: ".f2c(100.0)."\n");
print("Celsius: ".f2c(-40.0)."\n");
?>

This script will print:

Celsius: 37.777777777778
Celsius: -40

⇒Creating Your Own Functions in PHP

⇒⇒PHP Tutorials

2016-12-24, 817👍, 0💬

Passing Variables by References in PHP
How To Pass Variables By References? in PHP? You can pass a variable by reference to a function by taking the reference of the original variable, and passing that reference as the calling argument. Here is a PHP script on how to use pass variables by references: <?php function swap($a, $b) { ... 2016-12-24, 764👍, 0💬

Returning a Value from a Function in PHP
How To Return a Value Back to the Function Caller? in PHP? You can return a value to the function caller by using the "return $value" statement. Execution control will be transferred to the caller immediately after the return statement. If there are other statements in the function after the return ... 2016-12-24, 748👍, 0💬

Invoking a User Function in PHP
How To Invoke a User Function? in PHP? You can invoke a function by entering the function name followed by a pair of parentheses. If needed, function arguments can be specified as a list of expressions enclosed in parentheses. Here is a PHP script example on how to invoke a user function: <?p... 2016-12-28, 734👍, 0💬

Variables Are Passed by Values in PHP
How Variables Are Passed Through Arguments? in PHP? Like more of other programming languages, variables are passed through arguments by values, not by references. That means when a variable is passed as an argument, a copy of the value will be passed into the function. Modifying that copy inside the... 2016-12-24, 726👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.