<!DOCTYPE html> <html> <head> <meta charset="utf-8"/> <title>Ajay Salh</title> </head> <body> <form method="post" action="addme.php"> <label for="num">Number to Add: </label> <input type="number" id="num" name="num" placeholder="Enter A Number" /> <button type="submit" name="add">Add</button> </br><button type = "submit" name ="reset">Reset to Zero</button> </form> <?php $a = intval(file_get_contents("current.txt")); if (isset($_POST['add'])) { $a = $_POST['num'] + $a; file_put_contents("current.txt", strval($a)); } if (isset($_POST['reset'])) { $a = 0; file_put_contents("current.txt", strval($a)); } ?> </br><p> Total Added So Far: <?= $a; ?></p> </body> </html>(Edited: 2021-03-03)
<label for="mynum">Number to Add:</label></form>
<input type="number" id="num" name="mynum">
<input type="submit" value="Submit">
$count = file_get_contents($file_name);}
$count = $_POST['mynum'] + $count; file_put_contents($file_name, $count);}
<label for="n1">Number to Add:</label></form>
<input type="number" id="n1" name="n1"> <input type="submit" value="Add">
$count = file_get_contents($file_name);
$count = $_POST['n1'] + $count; file_put_contents($file_name, $count);}
<html> <body>
<h1>Number</h1>
<form action="#" method ="post"> <label for="number">Add</label> <input type="number" id="number" min="0" max="infinite"> <input type="submit" id= "submit" value ="Submit"><?php
</form>
if(isset($_POST['submit'])) { $number = $_POST['number']; $file=fopen("current.txt", "a") fwrite($file,"number :"); fwrite = ($file, $number ."\n"); fclose($file); } ?> </body> </html>(Edited: 2021-03-03)
<!DOCTYPE html> <html> <body>
<h1>Add number</h1> <p>Choose a number so that I can add it to the count:</p>
<?php function calc_sum($curr_num) { $total = 0; $total_file = "current.txt";
if (file_exists($total_file)){ $total = (int) file_get_contents($total_file); } else { fopen($total_file, 'w') or die("Unable to open file"); } $total = $total + $curr_num; echo "<h3>Total Added So Far: ". $total ."</h3>"; file_put_contents($total_file, $total); fclose($total_file); } ?>
<form action="addme.php" method="post"> <label for="NumAdd">Number To Add</label> <input type="number" name="Num">
<input type="submit" name="subm" value="Submit"> </form> <?php if (isset($_POST['subm'])) { calc_sum($_POST['Num']); } ?>
</body> </html>(Edited: 2021-03-03)
<title>Exercise</title></head> <body>
<?php $sum = 0; ?> <form method="get" action="addme.php"> <label for="numIn">Number To Add:</label> <input type="text" name="numberToAdd" size="10" id="numIn"/> </br> <label for="addButton">Add:</label> <input type="submit" name="Add" value="Add" id="addButton"/> </form> <?php if (file_exists("current.txt")) { $sum = file_get_contents("current.txt"); } if (isset($_POST["numberToAdd"])) { $sum = $_POST["numbertoAdd"] + $sum; file_put_contents("current.txt", $sum); } ?> <p>Total Added So Far:<?php echo $sum; ?></p></body> </html>
<label for="field">Add number:</label></form>
<input type="number" id="field" name="field">
<input type="submit" value="Submit Number">
$file_name = 'nums.txt'; $nums = 0;if (file_exists('nums.txt')) {
$count = file_get_contents($file_name);} else {
$fileHandle = fopen("nums.txt", "w"); fwrite($fileHandle, $nums); fclose($fileHandle);} if (isset($_POST['number'])) {
$nums = $_POST['number'] + $nums; file_put_contents($file_name, $nums);} ?>
<head> <title>In-class exercise</title> </head> <body> <form method="post" action="addme.php"> <label for="addNumber">Number to Add </label> <input type="text" name="addNumber" size="10" /> <button type="Submit" size="10" name="click">Add</button> </form><?php
if (isset($_POST['click'])) { $file_name = 'current.txt'; $count = 0; if (file_exists($file_name)){ $count = (int) file_get_contents($file_name); } else { fopen($file_name, 'w'); } $count = $count + $_POST['addNumber']; echo "<h3>Total Added So Far: ". $count ."</h3>"; file_put_contents($file_name, $count); } ?> </body></html>
<?php $val = 0; $fileHandle = fopen("my.txt", "a"); ?> <form method="get" action="addme.php"> <input type="text" name="my_textfield" size="10" /> <input type="hidden" name="secret_data" value="do not peak" /> <input type="submit" name="sendform" value="Add" /> </form> <?php if($_REQUEST){ $val += $_REQUEST[my_textfield]; fwrite($fileHandle, $val); }//if else{}//else ?> <p> Total Added So Far: <?php echo $val ?> </p> <?php fclose($fileHandle);(Edited: 2021-03-03)