php - 通过链接将变量发送到下一页

Question

I need help.

How can I call the variable(within the url) after a successful search result in my index.php to the next page view.php so that I can view the complete data of the variable?

heres my code

"index.php"

<form method="post" action="index.php?go" id="searchform">
<input type="text" name="name" size = "50">
<br/>
<input type="submit" name="submit" value="SEARCH">
<button type="reset" value="Reset">RESET</button>
</form>


<?php

    $db=mysql_connect ("localhost", "root", "") or die ('I cannot connect to the database because: ' . mysql_error()); 
    $mydb=mysql_select_db("emp_dbA");

    if(isset($_POST['submit'])){
    if(isset($_GET['go'])){
    if(preg_match("/[A-Z | a-z]+/", $_POST['name'])){
    $name=$_POST['name'];
    $letter=$_GET['by'];

    $sql="SELECT emp_ID, fname, lname,mname FROM emp_tbl WHERE fname LIKE '%" . $name . "%' OR lname LIKE '%" . $name ."%' OR mname LIKE '%" .$name . "%'";
    $result=mysql_query($sql);  
    $numrows=mysql_num_rows($result);

    echo "<p>" .$numrows . " results found for " . stripslashes($name) . "</p>"; 

    while($row=mysql_fetch_array($result)){

    $fname =$row['fname'];
    $mname =$row['mname'];
    $lname=$row['lname'];
    $ID=$row['emp_ID'];

        echo "<ul>
"; 
        echo "<li>" . "<a href=\"view.php?id=$fname\">"  .$fname . " " . $mname. " " . $lname . "</a></li>
";
        echo  "</ul>";
                                            }
                                                    }
        else{
        echo "<p>Please enter a search query</p>";
            }


                            }
    }

?>

Answer 1

You get the URL parameters with the $_GET environment variable, while the field you did put inside the form (given that you chose post as the form method) will be read like $_POST["name"].

As a little piece of advice, try to resort to the GET method as few times as possible. Parameters received with the GET method are seen in the URL, while parameters received from the POST method aren't.

And, of course, sanitize all your GET/POST data before actually using it.