打開(kāi) include/helpers/string.helper.php 文件,找到如下代碼(大約33到102行) /** * 中文截取2,單字節(jié)截取模式 * * @access public * @param string $str 需要截取的字符串 * @param int $slen 截取的長(zhǎng)度 * @param int $startdd 開(kāi)始標(biāo)記處 * @return string */ if ( ! function_exists('cn_substr')) { function cn_substr($str, $slen, $startdd=0) { global $cfg_soft_lang; if($cfg_soft_lang=='utf-8') { return cn_substr_utf8($str, $slen, $startdd); } $restr = ''; $c = ''; $str_len = strlen($str); if($str_len < $startdd+1) { return ''; } if($str_len < $startdd + $slen || $slen==0) { $slen = $str_len - $startdd; } $enddd = $startdd + $slen - 1; for($i=0;$i<$str_len;$i++) { if($startdd==0) { $restr .= $c; } else if($i > $startdd) { $restr .= $c; } if(ord($str[$i])>0x80) { if($str_len>$i+1) { $c = $str[$i].$str[$i+1]; } $i++; } else { $c = $str[$i]; } if($i >= $enddd) { if(strlen($restr)+strlen($c)>$slen) { break; } else { $restr .= $c; break; } } } return $restr; } } 替換為 /** * 中英文截取字符串,漢字安2個(gè)字節(jié) * * @access public * @param string $str 需要截取的字符串 * @param int $cutLen 截取的長(zhǎng)度 * @param bool $cutSlashes 是否去掉\ * @param bool $addSlashes 是加\ * @param string $oDot 截取后加的字符串,如經(jīng)常用的三個(gè)點(diǎn) * @param bool $hasHtml 是否有html * @return string */ if ( ! function_exists(‘cn_substr’)){ function cn_substr($str, $cutLen, $oDot = null, $hasHtml = false, $cutSlashes = false, $addSlashes = false) { global $cfg_soft_lang; $str = trim ( $str ); if ($cutSlashes) $str = stripslashes ( $str ); if($hasHtml){ $str = preg_replace ( “/(\<[^\<]*\>|\r|\n|\s|\[.+?\])/is”, ‘ ‘, $str ); $str = htmlspecialchars ( $str ); }else{ $str = htmlspecialchars ( $str ); } if ($cutLen && strlen ( $str ) > $cutLen) { $nStr = ”; if ($cfg_soft_lang == ‘utf-8′) { $n = 0; $tn = 0; $noc = 0; while ( $n < strlen ( $str ) ) { $t = ord ( $str [$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 >= $cutLen)break; } if ($noc > $cutLen) $n -= $tn; $nStr = substr ( $str, 0, $n ); } else { for($i = 0; $i < $cutLen – 1; $i ++) { if (ord ( $str [$i] ) > 127) { $nStr .= $str [$i] . $str [$i + 1]; $i ++; } else { $nStr .= $str [$i]; } } } $str = $nStr . $oDot; } if ($addSlashes) $str = addslashes ( $str ); $str = htmlspecialchars_decode ( $str ); return trim ( $str ); } } 修改后全站都可以使用cn_substr()函數(shù),不管你的程序編碼是gbk還是utf8 示例:調(diào)用10個(gè)字(拼音漢字混雜) [field:title function='cn_substr(@me,20)'] |
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轉(zhuǎn)載請(qǐng)注明: 織夢(mèng)教程:重新定義cn_substr函數(shù)使截取字?jǐn)?shù)更準(zhǔn)確