Defining an Array Argument as Reference in PHP

Q

Can You Define an Array Argument as a Reference Type? in PHP?

✍: FYIcenter.com

A

You can define an array 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 array argument as a reference type:

<?php
function ref_shrink(&$array) {
  array_splice($array,1);
}
$numbers = array(5, 7, 6, 2, 1, 3, 4, 2);
print("Before shrinking: ".join(",",$numbers)."\n");
ref_shrink($numbers);
print("After shrinking: ".join(",",$numbers)."\n");
?>

This script will print:

Before shrinking: 5,7,6,2,1,3,4,2
After shrinking: 5

⇒ Returning an Array from a Function in PHP

⇐ Passing Arrays by References to Functions in PHP

⇑ Creating Your Own Functions in PHP

⇑⇑ PHP Tutorials

2016-12-18, ∼3419🔥, 0💬

Accessing Global Variables inside a Function in PHP
How To Access a Global Variable inside a Function? in PHP? By default, global variables are not accessible inside a function. However, you can make them accessible by declare them as "global" inside a function. Here is a PHP script on declaring "global" variables: <?php ?> $intRate = 5... 2016-12-08, ∼5925🔥, 0💬

Defining an Array Argument as Reference in PHP
Can You Define an Array Argument as a Reference Type? in PHP? You can define an array 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 array argument as a reference type: <?... 2016-12-18, ∼3420🔥, 0💬

Returning an Array from a Function in PHP
How To Return an Array from a Function? in PHP? You can return an array variable like a normal variable using the return statement. No special syntax needed. Here is a PHP script on how to return an array from a function: <?php function powerBall() { $array = array(rand(1,55), rand(1,55), ran... 2016-12-18, ∼3398🔥, 0💬

Passing Arrays to Function in PHP
Can You Pass an Array into a Function? in PHP? 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) { $sum = array_sum($array); $count = count($array); retur... 2023-04-06, ∼2662🔥, 1💬

💬 2023-04-06 Durga: Good

Passing Arrays by Values to Functions in PHP
How Arrays Are Passed Through Arguments? in PHP? 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 copy inside the function will not impact... 2016-12-18, ∼2649🔥, 0💬

Local Variables in a Function in PHP
What Is the Scope of a Variable Defined in a Function? in PHP? The scope of a local variable defined in a function is limited with that function. Once the function is ended, its local variables are also removed. So you can not access any local variable outside its defining function. Here is a PHP sc... 2016-12-08, ∼2497🔥, 0💬

Function Returns Data by Value in PHP
How Values Are Returned from Functions? in PHP? If a value is returned from a function, it is returned by value, not by reference. That means that a copy of the value is return. Here is a PHP script on how values are returned from a function: <?php $favor = "vbulletin"; function getFavor() { ... 2016-12-08, ∼2496🔥, 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, ∼2459🔥, 0💬

Defining an Argument as a Reference in PHP
Can You Define an Argument as a Reference Type? in PHP? 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 reference type: <?php function ref_s... 2016-12-24, ∼2357🔥, 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.