(PHP 7 >= 7.2.0, PHP 8)
mb_chr — Return character by Unicode code point value
$codepoint
, string|null $encoding
= null
) : string|falseReturns a string containing the character specified by the Unicode code point value, encoded in the specified encoding.
This function complements mb_ord().
codepoint
A Unicode codepoint value, e.g. 128024
for U+1F418 ELEPHANT
encoding
encoding
²ÎÊýΪ×Ö·û±àÂë¡£Èç¹ûÊ¡ÂÔ»òÊÇ null
£¬ÔòʹÓÃÄÚ²¿×Ö·û±àÂë¡£
A string containing the requested character, if it can be represented in the specified
encoding »òÕßÔÚʧ°Üʱ·µ»Ø false
.
°æ±¾ | ˵Ã÷ |
---|---|
8.0.0 |
ÏÖÔÚ encoding ¿ÉÒÔΪ null¡£
|
Example #1 Testing different code points
<?php
$values = [65, 63, 0x20AC, 128024];
foreach ($values as $value) {
var_dump(mb_chr($value, 'UTF-8'));
var_dump(mb_chr($value, 'ISO-8859-1'));
}
?>
ÒÔÉÏÀý³Ì»áÊä³ö£º
string(1) "A" string(1) "A" string(1) "?" string(1) "?" string(3) "€" bool(false) string(4) "??" bool(false)