统计中字符串长度

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<?php

/**

* @name test.php

* @date Mon Nov 19 21:10:39 CST 2007

* @copyright 马永占(MyZ)

* @author 马永占(MyZ)

* @link http://blog.csdn.net/mayongzhan/

*/

header("Content-Type: text/html; charset=utf-8");

echo $test = "马永占MyZ";echo "<br />";

mb_internal_encoding("UTF-8");//使用mb_strlen

echo "strlen ".strlen($test)."<br />";

echo "mb_strlen ".mb_strlen($test)."<br />";

echo "mb_strwidth ".mb_strwidth($test)."<br />";

function countStr($str, $handle, $onlyCh=0)

{

//$handle = 1 按照mb_strlen算 一个中文按照1个字算

//$handle = 2 按照mb_strwidth算 一个中文按照2个字算

//$handle = 3 按照strlen算 一个中文按照3个字算

//$onlyCh = 1 只统计中文

$length = strlen($str);

if ($handle == 3 && $onlyCh==0) {

return $length;

}

else {

$i = 0;

if ($onlyCh == 1) {

$k = 0;

}

else {

$k = 1;

}

while($i < $length) {

if(preg_match("/^[" . chr(0xa1) . "-" . chr(0xff) . "]+$/", $str[$i])) {

$i += 3;

$n += $handle;

}

else {

$i += 1;

$n += $k;

}

}

return $n;

}

}

echo "countStr1 " . countStr($test, 1) . "<br />";

echo "countStr2 " . countStr($test, 2) . "<br />";

echo "countStr3 " . countStr($test, 3) . "<br />";

echo "countStr4 " . countStr($test, 1, 1) . "<br />";

echo "countStr5 " . countStr($test, 2, 1) . "<br />";

echo "countStr6" . countStr($test, 3, 1) . "<br />";

?>

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