How Do I Add Key-Value Pairs to PHP Associative Arrays?

Pushing Values and Keys into PHP Arrays

In PHP, arrays can hold both numerically indexed elements and key-value pairs, known as associative arrays. When dealing with associative arrays, there is a common desire to add a new key-value pair to the array, similar to array_push for numerically indexed arrays.

Array Pushing Function for Associative Arrays

Unfortunately, there is no built-in function in PHP that mimics array_push for associative arrays. Instead, you will need to explicitly set the key and value using the array assignment syntax:

$GET[indexname] = $value;

Example Usage

Consider the following code:

$GET = array();
$key = 'one=1';
$rule = explode('=', $key);
$GET[$rule[0]] = $rule[1]; //  Use bracket syntax to set key

After executing this code, $GET will contain the key-value pair ['one' => '1'].

Note on Concatenation

It's essential to note that if your array key contains spaces or special characters, it must be enclosed in quotes to ensure it is treated as a string. For example:

$array['my key name'] = 'John Doe';

Conclusion

Pushing elements into associative arrays requires the use of the array assignment syntax $array[key] = value. There is no dedicated function for this task in PHP.

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