$row ){list ( $kwd, $url ) = $row;for($j = $i + 1; $j {$subkwd = $linkmap [$j] [0];//如果包含其他关键字，暂时替换成其他字符串if (strpos ( $kwd, $subkwd ) !== false){$tmpkwd = ‘{‘ . md5 ( $subkwd ) . ‘}’;$kwd = str_replace ( $subkwd, $tmpkwd, $kwd );$tmpkwds [$tmpkwd] = $subkwd;}}//把文字替换成链接$str = preg_replace ( ‘/(‘ . $row [0] . ‘)/sui’, ‘’ . $kwd . ‘’, $str, $count );}//把代替子关键字的字符串替换回来foreach ( $tmpkwds as $tmp => $kwd ) {$str = str_replace ( $tmp, $kwd, $str );}return $str;}?>
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