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Moath Hijazi

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  • المساهمات

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 نوع المحتوى 

ريادة الأعمال

البرمجة

التصميم

DevOps

التسويق والمبيعات

العمل الحر

البرامج والتطبيقات

آخر التحديثات

قصص نجاح

أسئلة وأجوبة

كتب

دورات

أجوبة بواسطة Moath Hijazi

  2. كيفية حل مشكلة استخدام navigator.userAgent و navigator.appVersion و navigator.platform في المتصفحات الحديثة؟

    في جافا سكريبت

    نشر · تم التعديل في بواسطة Mustafa Suleiman
    تعديل عنوان السؤال

    A page or script is accessing at least one of navigator.userAgent, navigator.appVersion, and navigator.platform. Starting in Chrome 101, the amount of information available in the User Agent string will be reduced.

    To fix this issue, replace the usage of navigator.userAgent, navigator.appVersion, and navigator.platform with feature detection, progressive enhancement, or migrate to navigator.userAgentData.

    Note that for performance reasons, only the first access to one of the properties is shown.

     

    how to fix this issue 

    • أعجبني 1

  4. لماذا الصنف row لا يعمل - Bootstrap ؟

    في أسئلة البرمجة

    نشر 

    <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="./css/bootstrap.css">
    <title>bootstrap</title>
</head>
<body>


<div class="container ">
    <div  class = "row">
        <div >test</div>
        <div >test1</div>
        <div>test2</div>
        <div>test3</div>
        <div >test4</div>
    
    </div>
</div>


    <script src="./js/popper.min.js"></script>
    <script src="./js/jquery-3.6.0.min.js"></script>
    <script src="./js/bootstrap.js"></script>
</body>
</html>

    output : 

    test

    test1

    test2

    test3

    test4

    لماذا كلاس 'row' لا يعمل ؟

    • أعجبني 3

  5. ظهور الخطأ Notice: Undefined index: name في PHP

    في PHP

    نشر 

    <body>
    <div class="box">
    <form action="" method="POST" enctype="multipart/form-data">
      <h3>add new product</h3>
      <input type="text" class="box" required placeholder="enter product name" name="name">
      <input type="number" min="0" class="box" required placeholder="enter product price" name="price">
      <textarea name="details" class="box" required placeholder="enter product details" cols="30" rows="10"></textarea>
      <input type="file" accept="image/jpg, image/jpeg, image/png" required class="box" name="image">
      <input type="submit" value="add product" name="sub" class="btn">
   </form>
    </div>
    
</body>
</html>
<?php

if(isset($_POST['sub'])){

    $name = mysqli_real_escape_string($conn, $_POST['name']);
    $price = mysqli_real_escape_string($conn, $_POST['price']);
    $details = mysqli_real_escape_string($conn, $_POST['details']);
    $image = $_FILES['image']['name'];
    $image_size = $_FILES['image']['size'];
    $image_tmp_name = $_FILES['image']['tmp_name'];
    $image_folter = 'uploaded_img/'.$image;
 
    $select_product_name = mysqli_query($conn, "SELECT name FROM `p` WHERE name = '$name'") or die('query failed');
 
    if(mysqli_num_rows($select_product_name) > 0){
       $message[] = 'product name already exist!';
    }else{
       $insert_product = mysqli_query($conn, "INSERT INTO `p`(name, details, price, image) VALUES('$name', '$details', '$price', '$image')") or die('query failed');
 
       if($insert_product){
          if($image_size > 2000000){
             $message[] = 'image size is too large!';
          }else{
             move_uploaded_file($image_tmp_name, $image_folter);
             $message[] = 'product added successfully!';
          }
       }
    }
 
 }

    output :

    Notice: Undefined index: name in C:\xampp\htdocs\server\test to fix my problems\index.php on line 29

    Notice: Undefined index: price in C:\xampp\htdocs\server\test to fix my problems\index.php on line 30

    Notice: Undefined index: details in C:\xampp\htdocs\server\test to fix my problems\index.php on line 31

    Notice: Undefined index: image in C:\xampp\htdocs\server\test to fix my problems\index.php on line 32

    Notice: Undefined index: image in C:\xampp\htdocs\server\test to fix my problems\index.php on line 33

    Notice: Undefined index: image in C:\xampp\htdocs\server\test to fix my problems\index.php on line 34

    • أعجبني 1

  6. ما السبب في خطأ Call to undefined function mysqli_real_escape_sting

    في PHP

    نشر

     


      

    

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>register</title>
</head>
<body>
    <div class="box">
        <form method="post" >
            <h3>register</h3>
            <input type="text" name="name" id=""  placeholder = "  enter your name">
            <input type="email" name="email" id="" placeholder = "  enter your email">
            <input type="password" name="password" id="" placeholder = "  enter your password">
            <input type="password" name="password_re" id="" placeholder = "  enter your password again">
            <input type="submit" name="btn" value = "register" id="btn">
            <p> Already Have An Account ?  <a href="login.php">login</a> </p>
        </form>
    </div>
    
</body>
</html>

<!-- include style rel -->

<?php include 'conf.php' ; ?>

<!-- include ended -->

<?php

if(isset($_POST['btn'])){

    $name = mysqli_real_escape_sting($conn , $_POST['name']) ; 
    $email = mysqli_real_escape_sting($conn , $_POST['email']) ; 
    $password = mysqli_real_escape_sting($conn , $_POST['password']) ; 
    $pass = mysqli_real_escape_sting($conn , $_POST['password_re']) ; 

    if($password == $pass){
        $select = mysqli_query($conn , "SELECT * FROM `u` WHERE email = '$email '") or die ("select failed");

        if(mysqli_num_rows($select) > 0 ){
            echo '<span class = `msg`>this user already exist</span>';

        }else{

            $insert = mysqli_query($conn , "INSERT INTO u (name, email ,password ) VALUES ('$name', '$email', '$password')")or die("insert failed");

        }

    }else{
        echo '<span class = `msg`>password not matched</span>';

    }





}

?>

    output : 

     

    Fatal error: Uncaught Error: Call to undefined function mysqli_real_escape_sting() in C:\xampp\htdocs\server\ahmed\register.php:37 Stack trace: #0 {main} thrown inC:\xampp\htdocs\server\ahmed\register.phpon line37

    • أعجبني 2
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