This article summarizes the function to intercept strings based on the PHP function substr. However, when encountering Chinese, half of the Chinese characters are intercepted and garbled characters appear. The following introduces the interception program that supports Chinese and other encodings.
* String interception, supports Chinese and other encodings
*
* @static * @access public * @param string $str The string that needs to be converted * @param string $start starting position * @param string $length truncation length
* @param string $charset encoding format
* @param string $suffix truncation of display characters * @return string */ function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true) { if(function_exists("mb_substr"))
If we directly use php substr to intercept data, such as in English and When Chinese characters are mixed, the following problems will occur: If there is such a string $str="This is a string"; In order to intercept the first 10 characters of the string, use if(strlen($str)>10) $str=substr($str,10)."…"; Then, the output of echo $str should be "This is a word..."Suppose$str="This is a string"; This string contains a half-width character, the same execution: if(strlen($str)>10) $ str=substr($str,10); Since the 10th and 11th characters of the original string $str constitute the Chinese character "character"; After performing string division, the Chinese character will be divided into two, so The intercepted string will be garbled. Using the above code character interception code can easily solve this problem. Today I found a better way to intercept Chinese strings, and I would like to share it with you.
Program 2: PHP intercepts UTF-8 strings and solves the half-character problem
/***************************************************** ****************** * PHP intercepts UTF-8 strings to solve the half-character problem. * English and numbers (half-width) are 1 byte (8 bits), Chinese (full-width) are 3 bytes * @return The string taken out, when $len is less than or equal to 0, the entire character will be returned String * @param $str Source string * $len The length of the left substring **************************** *****************************************/
?>
http://www.bkjia.com/PHPjc/444686.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444686.htmlTechArticleThis article summarizes the function to intercept strings based on the php function substr, but it appears when encountering Chinese The solution to the problem of garbled characters when half of Chinese characters are intercepted is introduced below...
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