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.
The input string.
If the value of pad_length
is negative, less than, or equal to the length of the input string, no padding takes place, and input
will be returned.
Note:
The
pad_string
may be truncated if the required number of padding characters can't be evenly divided by thepad_string
's length.
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
.
Returns the padded string.
<?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($input, 6, "___"); // produces "Alien_" echo str_pad($input, 3, "*"); // produces "Alien" ?>
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