I am trying to send a string via ajax using the GET method but whenever that string contains some punctuation characters those characters do not appear when I use the echo in php.
For example if I send a string "sub + 12" the php will echo "sub 12" If I send "&()*", php will echo an empty string.
Why does this happen? Are there any special characters that the string cannot contain?
you encodeURIComponent(). this is demo code which you can check
something like this encodeURIComponent(yourtext)
first this html code . in text filed enter your text and check this output, this is onkeyup so enter text and check result
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>PHP, jQuery search demo</title>
<link rel="stylesheet" type="text/css" href="my.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("input").keyup(function () {
$('#results').html('');
var searchString = $("#search_box").val();
var data = 'search_text=' + encodeURIComponent(searchString);
if (searchString) {
$.ajax({
type: "GET",
url: 'edit.php',
data: data,
dataType: 'text',
async: false,
cache: false,
success: function (result) {
$('#results').html(result);
//window.location.reload();
}
});
}
});
});
</script>
</head>
<body>
<div id="container">
<div style="margin:20px auto; text-align: center;">
<form method="post" action="do_search.php">
<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 :</div>
<ul id="results" class="update">
</ul>
</div>
</div>
</body>
</html>
then create edit.php file
<?php
$searchquery = $_GET['search_text'];
echo $searchquery;
?>
then check result . which is working
Output is
Search results :
&()*
