Does PHP's array() operate on arrays or objects?

In PHP, array() operates on arrays and is a function that allows operations on arrays. The function of this function is to create arrays; PHP supports single-dimensional and multi-dimensional arrays, and also provides database query results. Function to construct an array, the syntax is "array(value1,value2,value3,etc.)" or "array(key=>value,key=>value,key=>value,etc.)".

The operating environment of this article: Windows 10 system, PHP version 8.1, Dell G3 computer

Does array() in php operate on arrays or objects?

array() function is used to create an array.

PHP array is a function that allows operations on arrays. PHP supports single-dimensional and multi-dimensional arrays. It also provides functions for constructing arrays using database query results.

In PHP, there are three types of arrays:

• Numeric Array - Array with numeric ID keys

• Associative array - an array with specified keys, each key associated with a value

• Multidimensional array - an array containing one or more arrays

Grammar

The syntax of numerical array:

array(value1,value2,value3,etc.);

The syntax of associative array:

array(key=>value,key=>value,key=>value,etc.);

The parameters are expressed as follows:

key specifies the key name (numeric value or string).

value specifies the key value.

The example is as follows:

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
echo "Peter is " . $age[&#39;Peter&#39;] . " years old.";
?>

Output result:

##Example:

<?php
$cars=array("Volvo","BMW","Toyota");
echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . ".";
?>

Output result:

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