取字符串,php 截取中文字符串
php对中文的支持不怎么好哦,特别在我一个字符串中有中文与英语时截取就是个问题了,处理不好就会出现乱码了,下面我们这截取中文字符串函数就很好的处理了这件事情。
<?php function MooCutstr($string, $length, $dot = ' ...') { global $charset; if (strlen($string) <= $length) { return $string; } $string = str_replace(array( '&', '"', '<', '>' ) , array( '&', '"', '<', '>' ) , $string); $strcut = ''; if (strtolower($charset) == 'utf-8') { $n = $tn = $noc = 0; while ($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 <= $t && $t <= 251) { $tn = 5; $n+= 5; $noc+= 2; } elseif ($t == 252 || $t == 253) { $tn = 6; $n+= 6; $noc+= 2; } else { $n++; } if ($noc >= $length) { break; } } if ($noc > $length) { $n-= $tn; } $strcut = substr($string, 0, $n); } else { for ($i = 0; $i < $length; $i++) { $strcut.= ord($string[$i]) > 127 ? $string[$i] . $string[++$i] : $string[$i]; } } $strcut = str_replace(array( '&', '"', '<', '>' ) , array( '&', '"', '<', '>' ) , $strcut); return $strcut . $dot; }
教程地址:http://www.phprm.com/code/3b3386ad016e545ab43253679c852426.html
欢迎转载!但请带上文章地址^^