Limit Maximum Post Submit In PHP | CampCodes

Limit Maximum Post Submit in PHP

June 7, 2020
limit maximum post submit in php

In this tutorial, we will create a Limit Maximum Post Submit using PHP. This code can limit the submitted post when users reach the maximum entries. The system uses the MySQLi POST method to call a specific function that prompts a warning when you reach the maximum gate for your database using mysqli_num_rows() to track the number of rows available in the table. This a user-friendly program. Feel free to modify and use it for your system.

We will be using PHP as a scripting language and interpreter that is mainly used on any web server, including xamp, wamp, etc. It is being applied to many popular websites because of the modern approach as its today.

Table of Contents

Getting Started:

First, you have to download & install XAMPP or any local server that runs PHP scripts. Here’s the link for the XAMPP server

And, this is the link for the bootstrap that I used for the layout design

Creating Database

Open your database web server then create a database name in it db_post_limit; after that, click Import, then locates the database file inside the folder of the application then click ok.

limit maximum post submit in php

Creating the database connection

Open your any kind of text editor(notepad++, etc..). Then just copy/paste the code below then name it conn.php.

    $conn=mysqli_connect("localhost", "root", "", "db_post_limit");
        die("Error: Failed to connect to database!");

Creating The Interface

This is where we will create a simple form for our application. To create the forms simply copy and write it into your text editor, then save it as index.php.

<!DOCTYPE html>
<html lang="en">
        <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
        <link rel="stylesheet" type="text/css" href="css/bootstrap.css" />
    <nav class="navbar navbar-default">
        <div class="container-fluid">
            <a class="navbar-brand" href="">Sourcecodester</a>
    <div class="col-md-3"></div>
    <div class="col-md-6 well">
        <h3 class="text-primary">PHP - Limit Maximum Post Submit</h3>
        <hr style="border-top:1px dotted #ccc;"/>
        <div class="col-md-4">
            <form method="POST" action="save.php">
                <div class="form-group">
                    <input type="text" name="username" class="form-control" reqired="required"/>
                <div class="form-group">
                    <input type="password" name="password" class="form-control" reqired="required"/>
                <div class="form-group">
                    <input type="text" name="firstname" class="form-control" reqired="required"/>
                <div class="form-group">
                    <input type="text" name="lastname" class="form-control" reqired="required"/>
                <center><button class="btn btn-primary" name="save">Submit</button></center>
        <div class="col-md-8">
            <table class="table table-bordered">
                <thead class="alert-info">
                        $query=mysqli_query($conn, "SELECT * FROM `user`") or die(mysqli_error());
                            <td><?php echo $fetch['username']?></td>
                            <td><?php echo $fetch['password']?></td>
                            <td><?php echo $fetch['firstname']?></td>
                            <td><?php echo $fetch['lastname']?></td>

Creating the Main Function

This code contains the main function of the application. This code will prompt a warning when the button is clicked. To do that just copy and write this block of codes inside the text editor, then save it as save.php.

        $query=mysqli_query($conn, "SELECT * FROM `user`") or die(mysqli_error());
        if($row < 5){
            mysqli_query($conn, "INSERT INTO `user` VALUES('', '$username', '$password', '$firstname', '$lastname')") or die(mysqli_error());
            echo"<script>alert('You have reached the maximum limit of 5 post \\nPlease delete some data first!')</script>";

Leave a Reply

Your email address will not be published. Required fields are marked *