{"id":496,"date":"2021-03-18T02:01:34","date_gmt":"2021-03-18T02:01:34","guid":{"rendered":"https:\/\/phptutorial.net\/?page_id=496"},"modified":"2025-04-06T02:59:24","modified_gmt":"2025-04-06T02:59:24","slug":"php-associative-arrays","status":"publish","type":"page","link":"https:\/\/www.phptutorial.net\/php-tutorial\/php-associative-arrays\/","title":{"rendered":"PHP Associative Arrays"},"content":{"rendered":"\n

Summary<\/strong>: in this tutorial, you will learn about PHP associative arrays and how to use them effectively.<\/p>\n\n\n\n

Associative arrays are arrays<\/a> that allow you to keep track of elements by names rather than by numbers.<\/p>\n\n\n\n

Creating PHP associative arrays #<\/a><\/h2>\n\n\n\n

To create an associative array, you use the array()<\/code> construct:<\/p>\n\n\n

<?php<\/span>\n\n$html = array<\/span>();<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
or the JSON notation syntax:<\/p>\n\n\n
<?php<\/span>\n\n$html = [];<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Adding elements to an associative array #<\/a><\/h2>\n\n\n\n
You need to specify a key to add an element to an associative array. For example, the following adds the title to the $html<\/code> array:<\/p>\n\n\n
<?php<\/span>\n\n$html['title'<\/span>] = 'PHP Associative Arrays'<\/span>;\n$html['description'<\/span>] = 'Learn how to use associative arrays in PHP'<\/span>;\n\nprint_r($html);<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Output:<\/p>\n\n\n
Array<\/span>\n(\n    [title] => PHP Associative Arrays\n    [description] => Learn how to use<\/span> associative<\/span> arrays<\/span> in<\/span> PHP<\/span>\n)<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Accessing elements in an associative array #<\/a><\/h2>\n\n\n\n
To access an element in an associative array, you use the key. For example, the following shows how to access the element whose key is title<\/code> in the $html<\/code> array:<\/p>\n\n\n
<?php<\/span>\n\n$html['title'<\/span>] = 'PHP Associative Arrays'<\/span>;\n$html['description'<\/span>] = 'Learn how to use associative arrays in PHP'<\/span>;\n\necho<\/span> $html['title'<\/span>];<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Output:<\/p>\n\n\n
PHP Associative Arrays<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Summary #<\/a><\/h2>\n\n\n\n
    \n
  • Use an associative array to reference elements by names rather than numbers.<\/li>\n<\/ul>\n
    \n\t
    \n\t\t
    Did you find this tutorial useful?<\/div>\n\t\t
    \n\t\t\t\n\t\t\t\t\n\t\t\t\t\t<\/path>\n\t\t\t\t<\/svg>\n\t\t\t\t Yes <\/span>\n\t\t\t<\/button>\n\n\t\t\t\n\t\t\t\t\n\t\t\t\t\t<\/path>\n\t\t\t\t<\/svg>\n\t\t\t\t No <\/span>\n\t\t\t<\/button>\n\t\t<\/div>\n\t<\/header>\n\n\t
    \n\t\t
    \n\t\t\t
    <\/div>\n\t\t\t\n\t\t\t
Try it<\/a><\/p>\n\n\n\n
Try it<\/a><\/p>\n\n\n\n