PHP提取中文首字母_php技巧

function pykey( $py_key)
{
$pinyin = 65536 + pys($py_key);
if ( 45217 {
$zimu = "A";
return $zimu;
}
if ( 45253 {
$zimu = "B";
return $zimu;
}
if ( 45761 {
$zimu = "C";
return $zimu;
}
if ( 46318 {
$zimu = "D";
return $zimu;
}
if ( 46826 {
$zimu = "E";
return $zimu;
}
if ( 47010 {
$zimu = "F";
return $zimu;
}
if ( 47297 {
$zimu = "G";
return $zimu;
}
if ( 47614 {
$zimu = "H";
return $zimu;
}
if ( 48119 {
$zimu = "J";
return $zimu;
}
if ( 49062 {
$zimu = "K";
return $zimu;
}
if ( 49324 {
$zimu = "L";
return $zimu;
}
if ( 49896 {
$zimu = "M";
return $zimu;
}
if ( 50371 {
$zimu = "N";
return $zimu;
}
if ( 50614 {
$zimu = "O";
return $zimu;
}
if ( 50622 {
$zimu = "P";
return $zimu;
}
if ( 50906 {
$zimu = "Q";
return $zimu;
}
if ( 51387 {
$zimu = "R";
return $zimu;
}
if ( 51446 {
$zimu = "S";
return $zimu;
}
if ( 52218 {
$zimu = "T";
return $zimu;
}
if ( 52698 {
$zimu = "W";
return $zimu;
}
if ( 52980 {
$zimu = "X";
return $zimu;
}
if ( 53689 {
$zimu = "Y";
return $zimu;
}
if ( 54481 {
$zimu = "Z";
return $zimu;
}
$zimu = $py_key;
return $zimu;
}
function pys( $pysa )
{
$pyi = "";
$i= 0;
for ( ; $i {
$_obfuscate_8w= ord( substr( $pysa,$i,1) );
if ( 160 {
$_obfuscate_Bw = ord( substr( $pysa, $i++, 1 ) );
$_obfuscate_8w = $_obfuscate_8w * 256 + $_obfuscate_Bw - 65536;
}
$pyi.= $_obfuscate_8w;
}
return $pyi;
}
$letter = pykey("*");
echo $letter;
?>