PHP截取字符串(加强版 兼容UTF8和GBK)

php教程|PHP源码

PHP截取字符串(加强版,兼容UTF8和GBK)

php教程-PHP源码

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function htmlencode($string) {if(is_array($string)) {foreach($string as $key => $val) {$string[$key] = htmlencode($val);}} else {$string = preg_replace(/&((#(\d{3,5}|x[a-fA-F0-9]{4})|[a-zA-Z][a-z0-9]{2,5});)/, &\\1, str_replace(array(&, \", $length)) {$wordscut = \;if(strtolower($charset) == utf-8) {$n = 0;$tn = 0;$noc = 0;while($n < strlen($string)) {$t = ord($string[$n]);if($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) {$tn = 1;$n++;$noc++;} elseif(194 <= $t && $t <= 223) {$tn = 2;$n += 2;$noc += 2;} elseif(224 <= $t && $t < 239) {$tn = 3;$n += 3;$noc += 2;} elseif(240 <= $t && $t <= 247) {$tn = 4;$n += 4;$noc += 2;} elseif(248 $length) {$n -= $tn;}$wordscut = substr($string, 0, $n);} else {for($i = 0; $i 127) {$wordscut .= $string[$i].$string[$i + 1];$i++;} else {$wordscut .= $string[$i];}}}$wordscut .= $dot;$string = $wordscut;}return htmlencode($string);}

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