PHP implements utf-8 to unicode function sharing, utf-8unicode_PHP tutorial

PHP implements utf-8 to unicode function sharing, utf-8unicode

The code is very simple, but the function is very practical. I recommend it to everyone.

Here’s the code first:

Copy code The code is as follows:

public function utf8_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);
}

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