How can you efficiently increase a specific value within a multidimensional array in PHP?

To efficiently increase a specific value within a multidimensional array in PHP, you can access the value using its key indices and simply increment it by the desired amount. This can be achieved by first identifying the key indices of the value you want to increase within the multidimensional array, and then using these key indices to directly access and update the value. 

// Example multidimensional array
$multiArray = array(
    "key1" => array(
        "subkey1" => 10,
        "subkey2" => 20
    ),
    "key2" => array(
        "subkey3" => 30,
        "subkey4" => 40
    )
);

// Increase the value at key "key1" and subkey "subkey2" by 5
$multiArray["key1"]["subkey2"] += 5;

// Output the updated multidimensional array
print_r($multiArray);

Keywords

PHP multidimensional array array manipulation array functions nested arrays

Related Questions