unicode_decode
Want to display the acutal character represented by Unicode Code Annotation U+.. for example U+00CE ?
The unicode_to_utf8 you find in comments futher will help us, but it requires as argument an array of integers, 00CE in our example (and the unicode notation) is hex, everything we need to do is to apply the hexdec function to convert it to decimal.
<?php echo unicode_to_utf8(array(hexdec("00CE"))); // Result: Î ?>
Or a handy function that will take U+00CE and will make the same thing
<?php
function unicodeCodePointToChar($str) {
if (substr($str,0,2) != 'U+') return $str;
$str = substr($str,2); // Skip U+
return unicode_to_utf8(array(hexdec($str)));
}
echo unicodeCodePointToChar("U+00CE"); // Result: Î
?>
Hopefully that will help someone like me ;)
unicode_encode
(PHP 6 >= 6.0.0)
unicode_encode — Convert a unicode string in any encoding
Description
string unicode_encode
( unicode $input
, string $encoding
[, int $errmode
] )
Takes a unicode string and converts it to a string in the specified encoding .
Parameters
- input
-
The unicode string that is converted.
- encoding
-
The new encoding for input .
- errmode
-
Conversion error mode. This parameter determines the action to take when the converter cannot convert a character. For a list of available modes, refer to unicode_set_error_mode(). If the parameter is not set, the global error mode is used.
Return Values
A string on success or FALSE on failure.
Errors/Exceptions
Emits a E_WARNING level error if a converter cannot be created for the desired encoding .
Examples
Example #1 A unicode_encode() example
Note: The characters will be seen instead of entities in the output.
<?php
header ('Content-Type: text/plain; charset=ISO-8859-2');
$encoded = unicode_encode ('\u0150\u0179', 'ISO-8859-2');
echo 'The string itself:', $encoded, PHP_EOL;
echo 'The length of the string: ', strlen ($encoded);
?>
The above example will output something similar to:
The string itself: ŐŹ The length of the string: 2
Notes
Warning
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
See Also
- unicode_set_error_mode() - Set the error mode for strings conversions
- unicode_decode() - Convert a binary string into a Unicode string
add a note
User Contributed Notesunicode_encode
Nicolae Namolovan
18-Oct-2009 09:17
18-Oct-2009 09:17
berlioz at nicematin dot fr
14-Dec-2007 10:37
14-Dec-2007 10:37
a little usefull function
<?php
function unicode2utf8($c)
{
$output="";
if($c < 0x80)
{
return chr($c);
}
else if($c < 0x800)
{
return chr( 0xc0 | ($c >> 6) ).chr( 0x80 | ($c & 0x3f) );
}
else if($c < 0x10000)
{
return chr( 0xe0 | ($c >> 12) ).chr( 0x80 | (($c >> 6) & 0x3f) ).chr( 0x80 | ($c & 0x3f) );
}
else if($c < 0x200000)
{
return chr(0xf0 | ($c >> 18)).chr(0x80 | (($c >> 12) & 0x3f)).chr(0x80 | (($c >> 6) & 0x3f)).chr(0x80 | ($c & 0x3f));
}
return false;
}
?>
spam at or-k dot de
23-Feb-2007 01:45
23-Feb-2007 01:45
A PHP4 Version for converting a utf8 string/text to unicode:
function utf8_to_unicode( $str ) {
$unicode = array();
$values = array();
$lookingFor = 1;
for ($i = 0; $i < strlen( $str ); $i++ ) {
$thisValue = ord( $str[ $i ] );
if ( $thisValue < ord('A') ) {
// exclude 0-9
if ($thisValue >= ord('0') && $thisValue <= ord('9')) {
// number
$unicode[] = chr($thisValue);
}
else {
$unicode[] = '%'.dechex($thisValue);
}
} else {
if ( $thisValue < 128)
$unicode[] = $str[ $i ];
else {
if ( count( $values ) == 0 ) $lookingFor = ( $thisValue < 224 ) ? 2 : 3;
$values[] = $thisValue;
if ( count( $values ) == $lookingFor ) {
$number = ( $lookingFor == 3 ) ?
( ( $values[0] % 16 ) * 4096 ) + ( ( $values[1] % 64 ) * 64 ) + ( $values[2] % 64 ):
( ( $values[0] % 32 ) * 64 ) + ( $values[1] % 64 );
$number = dechex($number);
$unicode[] = (strlen($number)==3)?"%u0".$number:"%u".$number;
$values = array();
$lookingFor = 1;
} // if
} // if
}
} // for
return implode("",$unicode);
} // utf8_to_unicode