搜索文本文件与用户输入PHP [英] Search Text Files with PHP from User Input
问题描述
寻找一个解决方案，以通过邮编codeS的搜索列表。我有一帮拉链codeS，我们服务的一个文本文件。想有网站会要求用户输入他们的zip code上的表单，看看我们服务的区域。如果是的话，显示一条消息，说我们做的，如果不是，他说，我们不知道。思想的PHP将是我的问题，最好的解决办法，但我是一个总的小白，当谈到这一点。
Looking for a solution to search through a list of Zip Codes. I have a text file with a bunch of zip codes that we service. Would like to have a form on the website asking for the user to input their zip code to see if we service that area. If it does, display a message saying that we do, if not, saying that we don't. Thought PHP would be the best solution for my problem, but I'm a total noob when it comes to that.
我有我的形式成立，我只是不知道如何搜索的文本文件，并显示在另一个分区的答案？
I have my form set up, I'm just not sure how to search the text file and display the answer in another div?
<form action="zipcode.php" method="post">
<input type="text" name="search" />
<input type="submit" />
</form>
更新：preferably Ajax解决方案！
UPDATE: Preferably an AJAX solution!
推荐答案
（find_in_file_ajax.php）
AJAX method (tested)
PHP handler
(find_in_file_ajax.php)
<?php
$search = $_POST['search'];
$text = file_get_contents('zipcodes.txt');
$lines = explode("\n", $text);
if(in_array($_POST['search'], $lines)){ //checks if ZIP is in array
echo "ZIP code found";
}else{
echo "ZIP code does not exist";
}
?>
的HTML表单
<!DOCTYPE html>
<html>
<head>
<style>
.update {
font-family:Georgia;
color:#0000FF;
}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
$(".search_button").click(function() {
// getting the value that user typed
var searchString = $("#search_box").val();
// forming the queryString
var data = 'search='+ searchString;
// if searchString is not empty
if(searchString) {
// ajax call
$.ajax({
type: "POST",
url: "find_in_file_ajax.php",
data: data,
beforeSend: function(html) { // this happens before actual call
$("#results").html('');
$("#searchresults").show();
$(".word").html(searchString);
},
success: function(html){ // this happens after we get results
$("#results").show();
$("#results").append(html);
}
});
}
return false;
});
});
</script>
</head>
<body>
<div id="container">
<div>
<form method="post" action="">
<input type="text" name="search" id="search_box" class='search_box'/>
<input type="submit" value="Search" class="search_button" /><br />
</form>
</div>
<div>
<div id="searchresults">Search results: <span id="results" class="update"></span>
</div>
</div>
</div>
</body>
</html>
原始的答案
测试
首先，文件需要通过的file_get_contents 访问，然后爆炸的每个条目并提取有关的拉链code搜索。
Original answer
Tested
First the file needs to be accessed via file_get_contents, then explode each entry and extract the zip code search in question.
假设ZIP codes.txt文件是格式如下：
Assuming the zipcodes.txt file is in the following format:
43505
43517
43518
43526
43543
43505
43517
43518
43526
43543
注意：如果43505进行查询，就会发现。不同于4350和3505将不会被发现，所以这是一个唯一的查询。
NOTE: If 43505 is queried, it will be found. Unlike 4350 or 3505 will not be found, so it's a unique query.
考虑以下几点：
<?php
$search = $_POST['search'];
$text = file_get_contents('zipcodes.txt');
$lines = explode("\n", $text);
if(in_array($_POST['search'], $lines)){ //checks if ZIP is in array
echo "ZIP code found.";
}else{
echo "ZIP code does not exist";
}
?>
这篇关于搜索文本文件与用户输入PHP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
