How to add numbers in PHP

PHP program to convert word to digit

<?php function word_digit($word) { $warr = explode(';',$word); $result = ''; foreach($warr as $value){ switch(trim($value)){ case 'zero': $result .= '0'; break; case 'one': $result .= '1'; break; case 'two': $result .= '2'; ...

PHP Login and Logout example using sessions.

Program to create simple Login and Logout example using sessions. ✡️login.php <html> <head> <title>Login Form</title> </head> <body> <h2>Login Form</h2> <form method="post" action="checklogin.php"> User Id: <input type="text" name="uid"> <br> Password: <input type="password" name="pw"> <br> <input type="submit" value="Login"> </form> </body> </html> ✡️ checklogin.php <?php $uid = $_POST['uid']; $pw = $_POST['pw']; if($uid == 'arun' and $pw == 'arun123') { session_start(); $_SESSION['sid']=session_id(); header("location:securepage.php"); } ?> ✡️securepage.php <?php session_start(); if($_SESSION['sid']==session_id()) { echo "Welcome to you<br>"; ...

PHP program that multiplies corresponding elements of two given lists

<?php function multiply_two_lists($x, $y) { $a = explode(' ',trim($x)); $b = explode(' ',trim($y)); foreach($a as $key=>$value) { $output[$key] = $a[$key]*$b[$key]; } return implode(' ',$output); } echo multiply_two_lists(("10 12 3"), ("1 3 3"))."\n"; ?>

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