Which function is commonly used to define arrays in php?

array() function is a commonly used function in PHP to define arrays. It receives a parameter list, where each element corresponds to a value in the array. Key values ​​in the array can be omitted (the default is to start from 0 and increase), the order of elements is important, and arrays can be nested.

Functions commonly used to define arrays in PHP

array() function is the most commonly used function to define arrays in PHP function.

How to use the array() function:

array() function receives a parameter list, each parameter corresponds to a value in the array. Parameters can be of any data type, including strings, numbers, arrays, and even objects.

Syntax:

<code class="php">array($value1, $value2, $value3, ..., $valueN);</code>

Example:

<code class="php">$fruits = array("apple", "banana", "orange", "pear");</code>

This code creates an array named $fruits that contains 4 elements: "apple", "banana", "orange" and "pear".

Other points:

• The key values ​​in the array can be omitted, in which case the key values ​​will automatically increment from 0.
• The order of array elements is important because PHP arrays are ordered.
• Arrays can be nested, which means that one array can contain another array.

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