How To Pass an Argument to a Function

Home > PHP > Function

Q

How To Pass an Argument to a Function? - PHP Script Tips - Creating Your Own Functions

✍: 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

2007-04-24, 4594👍, 0💬

How To Get the Directory Name out of a File Path Name
How To Get the Directory Name out of a File Path Name? - PHP Script Tips - Working with Directoris and Files If you have the full path name of a file, and want to get the directory name portion of the path name, you can use the dirname() function. It breaks the full path name at the last directory p... 2007-04-23, 4890👍, 0💬

How Arrays Are Passed Through Arguments
How Arrays Are Passed Through Arguments? - PHP Script Tips - Creating Your Own Functions Like a normal variable, an array is passed through an argument by value, not by reference. That means when an array is passed as an argument, a copy of the array will be passed into the function. Modifying that ... 2007-04-24, 4827👍, 0💬

How To Break a File Path Name into Parts
How To Break a File Path Name into Parts? - PHP Script Tips - Working with Directoris and Files If you have a file name, and want to get different parts of the file name, you can use the pathinfo() function. It breaks the file name into 3 parts: directory name, file base name and file extension; and... 2007-04-23, 4795👍, 0💬

How To Define a User Function
How To Define a User Function? - PHP Script Tips - Creating Your Own Functions You can define a user function anywhere in a PHP script using the function statement like this: "function name() {...}". Here is a PHP script example on how to define a user function: <?php function msg() { print("... 2007-04-24, 4723👍, 0💬

Can You Pass an Array into a Function
Can You Pass an Array into a Function? - PHP Script Tips - Creating Your Own Functions You can pass an array into a function in the same as a normal variable. No special syntax needed. Here is a PHP script on how to pass an array to a function: <?php function average($array) { $sum = array_su... 2007-04-24, 4710👍, 0💬

How To Return a Value Back to the Function Caller
How To Return a Value Back to the Function Caller? - PHP Script Tips - Creating Your Own Functions 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 stat... 2007-04-24, 4679👍, 0💬

Can You Define an Argument as a Reference Type
Can You Define an Argument as a Reference Type? - PHP Script Tips - Creating Your Own Functions You can define an argument as a reference type in the function definition. This will automatically convert the calling arguments into references. Here is a PHP script on how to define an argument as a ref... 2007-04-24, 4654👍, 0💬

How Variables Are Passed Through Arguments
How Variables Are Passed Through Arguments? - PHP Script Tips - Creating Your Own Functions 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 ... 2007-04-24, 4624👍, 0💬

How To Pass an Argument to a Function
How To Pass an Argument to a Function? - PHP Script Tips - Creating Your Own Functions 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 funct... 2007-04-24, 4595👍, 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.