SEO Services
Website Programming in PHP / MYSQL
str_pad
(PHP 4 >= 4.0.1, PHP 5)
str_pad — Pad a string to a certain length with another string
Description
This functions returns the input string padded on the left, the right, or both sides to the specified padding length. If the optional argument pad_string is not supplied, the input is padded with spaces, otherwise it is padded with characters from pad_string up to the limit.
Parameters
- input
-
The input string.
- pad_length
-
If the value of pad_length is negative or less than the length of the input string, no padding takes place.
- pad_string
-
Note: The pad_string may be truncated if the required number of padding characters can't be evenly divided by the pad_string 's length.
- pad_type
-
Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH. If pad_type is not specified it is assumed to be STR_PAD_RIGHT.
Return Values
Returns the padded string.
Examples
Example #1 str_pad() example
<?php
$input = "Alien";
echo str_pad($input, 10); // produces "Alien "
echo str_pad($input, 10, "-=", STR_PAD_LEFT); // produces "-=-=-Alien"
echo str_pad($input, 10, "_", STR_PAD_BOTH); // produces "__Alien___"
echo str_pad($input, 6 , "___"); // produces "Alien_"
?>
