How can the use of a for() loop be beneficial in handling array indexes when manipulating arrays in PHP?

When manipulating arrays in PHP, using a for() loop can be beneficial for handling array indexes because it allows for easy iteration through each element of the array. This can be useful when you need to perform a specific operation on each element or when you need to access elements by their index. 

// Example of using a for() loop to manipulate array indexes in PHP
$array = [1, 2, 3, 4, 5];
for ($i = 0; $i < count($array); $i++) {
    $array[$i] = $array[$i] * 2; // Double each element
}
print_r($array);

Keywords

for loop array indexes manipulating arrays PHP benefits

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