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[php]
function csubstr( $mstring ,$startloc ,$length ) { //ÖÐÎÄ×Ö´®ÇиÊý
$mstrlen = strlen( $mstring );
//½ØÈ¡²ÎÊý³ý´í£¬ÏÞÖÆÔÚÔ­×Ö·û´®´óС·¶Î§ÄÚ
$startloc = ( $startloc < 0 ) ? 0 : ( ( $startloc >= $mstrlen ) ? ( $mstrlen - 1 ) : $startloc );
$length = ( ( $length + $startloc ) > $mstrlen ) ? $mstrlen : $length;
//²â¶¨ÕýÈ·µÄ½ØÈ¡¿ªÊ¼Î»ÖÃ
for ( $cyc = 0 ;$cyc < $startloc ;$cyc++ ) {
$cyc += ( ord( substr( $mstring ,$cyc ,1 ) ) > 0xa0 ) ? 1 : 0;
}
$startloc = $cyc;
//²â¶¨ÕýÈ·µÄ½ØÈ¡½áÊøÎ»ÖÃ
$endloc = $startloc + $length - 1;
for ( $cyc = $startloc ;$cyc < $endloc ;$cyc++ ) {
$cyc += ( ord( substr( $mstring ,$cyc ,1 ) ) > 0xa0 ) ? 1 : 0;
}
$endloc = $cyc;
//½ØÈ¡²¢Êä³ö
return substr( $mstring ,$startloc ,$endloc - $startloc );
}
[/php]



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    mbstring.detect_order = auto
    mbstring.substitute_character = none;

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