(PHP 4 >= 4.0.5, PHP 5, PHP 7, PHP 8)
iconv — Convert a string from one character encoding to another
$from_encoding
, string $to_encoding
, string $string
): string|false
Converts string
from from_encoding
to to_encoding
.
from_encoding
The current encoding used to interpret string
.
to_encoding
The desired encoding of the result.
If the string //TRANSLIT
is appended to
to_encoding
, then transliteration is activated. This
means that when a character can't be represented in the target charset,
it may be approximated through one or several similarly looking
characters. If the string //IGNORE
is appended,
characters that cannot be represented in the target charset are silently
discarded. Otherwise, E_NOTICE
is generated and the function
will return false
.
If and how //TRANSLIT
works exactly depends on the
system's iconv() implementation (cf. ICONV_IMPL
).
Some implementations are known to ignore //TRANSLIT
,
so the conversion is likely to fail for characters which are illegal for
the to_encoding
.
string
The string to be converted.
Returns the converted string, or false
on failure.
Example #1 iconv() example
<?php
$text = "This is the Euro symbol '€'.";
echo 'Original : ', $text, PHP_EOL;
echo 'TRANSLIT : ', iconv("UTF-8", "ISO-8859-1//TRANSLIT", $text), PHP_EOL;
echo 'IGNORE : ', iconv("UTF-8", "ISO-8859-1//IGNORE", $text), PHP_EOL;
echo 'Plain : ', iconv("UTF-8", "ISO-8859-1", $text), PHP_EOL;
?>
The above example will output something similar to:
Original : This is the Euro symbol '€'. TRANSLIT : This is the Euro symbol 'EUR'. IGNORE : This is the Euro symbol ''. Plain : Notice: iconv(): Detected an illegal character in input string in .\iconv-example.php on line 7
Note:
The character encodings and options available depend on the installed implementation of iconv. If the argument to
from_encoding
orto_encoding
is not supported on the current system,false
will be returned.