常用的php代码，hash，split，unset
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<?php/** * * @author * @version $Id$ */// 这个php文件用到了大多数数据处理需要用的功能。#error_reporting("ALL");#$db = tdbm_popen("./id.words.tdbm", O_RDONLY, 0444, 0, 0);function getTitle($db,$id){ $relate = tdbm_fetch($db,$id); return $relate;}# 读取文件$file_handle = fopen("./new.fix", "r");$count =0;# 遍历文本文件中的行while (!feof($file_handle)) { $line = fgets($file_handle); #if($count >40) # return ; #echo $line = preg_replace("/\\n/","",$line); #echo $line; $arr = explode("",$line); if (count($arr)<2) continue; $query=$arr[0]; $ids=$arr[1]; $arrID = explode("",$ids); $len=count($arrID); $str=""; unset($hash); for ($i=0; $i<$len; $i++) { $title=getTitle($db,$arrID[$i]); $words = explode("",$title); foreach($words as $word) { //echo $word; //判断是不是在hash词典中 if( isset($hash[$word])) { $hash[$word] = $hash[$word]+1; } else { $hash[$word] =1 ; } } } $i=0; //遍历hash数据结构 foreach ($hash as $key=>$val) { if( $i ==0) { $str=$key."\x03".$val; $i =1; } else { $str = $str."\x02".$key."\x03".$val; } } //字符串拼接 echo "qf".$query."\x01".$str."\n";}fclose($file_handle);?>[/size]