(PHP 8 >= PHP 8.3.0)
mb_str_pad — Pad a multibyte string to a certain length with another multibyte string
$string,$length,$pad_string = " ",$pad_type = STR_PAD_RIGHT,$encoding = null
This function returns the string
padded on the left, the right, or both sides to the specified
padding length, where the length is measured in Unicode codepoints. If the optional argument
pad_string is not supplied, the
string is padded with spaces, otherwise it
is padded with characters from pad_string
up to the limit.
stringThe input string.
length
If the value of length is negative,
less than, or equal to the length of the input string, no padding
takes place, and string will be returned.
pad_string注意:
The
pad_stringmay be truncated if the required number of padding characters can't be evenly divided by thepad_string's length.
pad_type
Optional argument pad_type can be
STR_PAD_RIGHT, STR_PAD_LEFT,
or STR_PAD_BOTH.
By default STR_PAD_RIGHT.
encodingencoding
参数为字符编码。如果省略或是 null，则使用内部字符编码。
Returns the padded string.
示例 #1 mb_str_pad() example
<?php
var_dump(mb_str_pad('▶▶', 6, '❤❓❇', STR_PAD_RIGHT)); // string(18) "▶▶❤❓❇❤"
var_dump(mb_str_pad('▶▶', 6, '❤❓❇', STR_PAD_LEFT)); // string(18) "❤❓❇❤▶▶"
var_dump(mb_str_pad('▶▶', 6, '❤❓❇', STR_PAD_BOTH)); // string(18) "❤❓▶▶❤❓"
var_dump(mb_str_pad("🎉", 3, "祝", STR_PAD_LEFT)); // string(10) "祝祝🎉"
?>