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PHP Calculator using OOPs method

CALCULATOR USING OOP <?php  if ($_SERVER["REQUEST_METHOD"] == 'POST') {     $num1 = $_REQUEST['num1'];     $num2 = $_REQUEST['num2'];     $btn = $_REQUEST['btn'];         $obj = new calc();         $result = $obj->$btn($num1,$num2);         echo $result; } class calc{     function add($num1,$num2){         return $num1 + $num2;     }     function sub($num1,$num2){         return $num1 - $num2;     }     function mul($num1,$num2){         return $num1 * $num2;     }     function div($num1,$num2){         return $num1 / $num2;     } } ?> <!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8">     <meta http-equiv="X-UA-Compatible" content="IE=edge">     <me...
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JavaScript Calculator

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<!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>Calculator</title> </head> <style>     body {         background-color: teal;     }     form {         text-align: center;         font-family: sans-serif;         color: black;     }     h1 {         text-align: center;         font-family: sans-serif;         background-color: black;         color: floralwhite;     }     fieldset {         margin: 150px 0 0 570px;         width: 300px;         b...
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Autocomplete Search bar CODE Using jQuery, PHP, Ajax, SQL:

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 FrontEnd <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <h2>Autocomplete Search bar using jQuery Ajax PHP and Mysql:</h2> <label>Search</label> <input type="text" name="find" id="find" placeholder="Find Name's"><br><br> <div id="findList"></div> </body> </html> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).ready(function(){ $('#find').keyup(function(){ var query = $(this).val(); if (query != '') { $.ajax({ data : {query: query}, type : "post", url : "search.php", success: function(data) { $('#findList').fadeIn(); $('#findList').html(data); } }...
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How to Password Decrypt In PHP

Password Decrypt   <?php $str = "shuvadeep"; // echo sha1($str); $enc = base64_encode($str); echo base64_decode($enc); ?> 
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Multiple File Upload PHP & Ajax Plugging

frontend <!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>Document</title> </head> <body>     <form id="frm" enctype="multipart/from-data">         <input type="file" name="upload_file[]" multiple><br><br>         <button type="button" onclick="sub();">SUBMIT</button>     </form> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script>     function sub(){         var upload = new FormData(frm);             console.log(upload);                 $.ajax({       ...
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Single - File Upload Pluggin with Ajax & PHP

   frontend file  <!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>Document</title> </head> <body> <h2>Upload File:</h2>     <form id="up">         <input type="file" name="upload"><br><br>         <button type="button" onclick="upload_data();">UPLOAD</button>     </form>     <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>     <script>         function upload_data(){             var file = new FormData(up);                 console.log(fi...
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PHP - Password Encrypt (CODE)

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  code: OUTPUT:
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