PHP print_r() Function: Usage Guide

1 year ago
Liam
1 minute

The print_r() function in PHP is used to display easily readable information about variables, often for debugging purposes. It outputs the values of variables, arrays, or objects in a readable format to the browser or command line.

Example of usage:

$array = array(1, 2, 3, 4, 5);
print_r($array);

Output result:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)

The print_r() function also has an optional parameter true, which returns the result as a string instead of outputting it to the browser. For example:

$array = array(1, 2, 3, 4, 5);
$result = print_r($array, true);
echo $result;

This will return the string result of print_r(), which can be further processed or output.

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