Question

我制作了简单的PHP代码以在文本文件中进行搜索，

但是我的问题是搜索结果对文本非常敏感，例如，如果我要在“ Iphone 4”上搜索并且文本是“ Iphone4”或“ Iphone-4” 它不会出现在搜索结果中。我应该添加或修改哪些内容以使其更灵活？

这是我的代码：

<?php

function searchID(Array $array, $value) 
    {   
        $idresult = "";
        foreach ($array as $subarray){ 
         if (isset($subarray[0]) && (substr($subarray[0], 0, strlen($value)) == $value) && $value!="") 
         { $idresult .= $subarray[0]." ".$subarray[2]." ".$subarray[1]."<br />";   }

         } 
         return $idresult;
    } 

// searchFirstName looks through the given $array and for each item that matches(even partially) 
// $value in the first name field it prints a table row of data, also returning a count of found items.
function searchFirstName(Array $array, $value) 
    {   
        $firstresult = "";
        foreach ($array as $subarray)
        {  
         if (isset($subarray[2]) && stristr($subarray[2],$value) && $value!=""){
             $firstresult .= $subarray[0]." ".$subarray[2]." ".$subarray[1]."<br />";   
             }
         }
             return $firstresult;
    } 


function searchLastName(Array $array, $value){   
        $lastresult = '';
        foreach ($array as $subarray){
         if (isset($subarray[1]) && stristr($subarray[1],$value) && $value!="") { $lastresult .= $subarray[0]." ".$subarray[2]." ".$subarray[1]."<br />";} 
             } return $lastresult;
}

$file = fopen("classlist.txt", "r");
$filestring = "";
$line_of_text ="";
while (!feof($file)) {
    $tempstring = fgets($file);
    $filestring .= $tempstring."<br />";
    $line_of_text .= $tempstring;
}
// populate $students array - line by line
$students = explode("\n", $line_of_text);
fclose($file);

// separate the ID, Last name and First name
foreach ($students as $key=>$value){
    $students[$key] = explode(",", $value);
}

$term = strip_tags(substr($_POST['search_term'],0, 100));

$string = '';
if ($term != "" && $term != " "){
switch ($_POST['field']) {
                case "fname":
                    $string .= searchFirstName($students, $term);
                    break;
                case "lname":
                    $string .= searchLastName($students, $term);
                    break;
                case "id":
                    $string .= searchID($students, $term);
                    break;
            }
}
if ($string != "") echo $string;
else echo '<div class="alert_yellow">No results found</div>';

?>

文本在文本文件中的排序如下：

9810,APPLE_Iphone_4_BW2,pdf
9810,APPLE_Iphone4_BW2,pdf
9810,APPLE_Iphone 4BW2,pdf
9810,APPLE_Iphone_4_BW2,pdf

当我在“ iphone4”上搜索时，结果仅显示“ 9810，APPLE_Iphone4_BW2，pdf”，而不是所有4行！那是我的问题！

如何降低搜索的敏感性？

0 个答案: