2021-03-02
Mar 3 In-Class Exercise.
Post your solution to the Mar 3 In-Class Exercise to this thread.
Best,
Chris
Post your solution to the Mar 3 In-Class Exercise to this thread.
Best,
Chris
2021-03-03
<!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) <!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>
<!DOCTYPE html>
<html>
<head>
<title>Add Me</title>
</head>
<body>
<form action="addme.php" method="post">
<label for="mynum">Number to Add:</label>
<input type="number" id="num" name="mynum">
<input type="submit" value="Submit">
</form>
Total Added So Far: <?php
$file_name = 'current.txt';
$count = 0;
if (file_exists('current.txt')) {
$count = file_get_contents($file_name);
}
if (isset($_POST['mynum'])) {
$count = $_POST['mynum'] + $count;
file_put_contents($file_name, $count);
}
echo $count;
?>
</body>
</html>
(Edited: 2021-03-03) <!DOCTYPE html>
<html>
<head>
<title>Add Me</title>
</head>
<body>
<form action="addme.php" method="post">
<label for="mynum">Number to Add:</label><br>
<input type="number" id="num" name="mynum"><br>
<input type="submit" value="Submit">
</form>
<br>
Total Added So Far:
<?php
$file_name = 'current.txt';
$count = 0;
if (file_exists('current.txt')) {
$count = file_get_contents($file_name);
}
if (isset($_POST['mynum'])) {
$count = $_POST['mynum'] + $count;
file_put_contents($file_name, $count);
}
echo $count;
?>
</body>
</html>
<pre>
<!DOCTYPE html>
<html>
<head>
<title>Add Me</title>
</head>
<body>
<form action="addme.php" method="post">
<label for="n1">Number to Add:</label></form>
<input type="number" id="n1" name="n1"> <input type="submit" value="Add">
Total Added So Far: <?php
$file_name = 'current.txt';
$count = 0;
if (file_exists($file_name))
$count = file_get_contents($file_name);
if (isset($_POST['n1'])) {
$count = $_POST['n1'] + $count;
file_put_contents($file_name, $count);
}
echo $count;
?>
</body>
</html>
(Edited: 2021-03-03) <pre>
<!DOCTYPE html>
<html>
<head>
<title>Add Me</title>
</head>
<body>
<form action="addme.php" method="post">
<label for="n1">Number to Add:</label><br>
<input type="number" id="n1" name="n1">
<input type="submit" value="Add">
</form>
<br>
Total Added So Far:
<?php
$file_name = 'current.txt';
$count = 0;
if (file_exists($file_name))
$count = file_get_contents($file_name);
if (isset($_POST['n1'])) {
$count = $_POST['n1'] + $count;
file_put_contents($file_name, $count);
}
echo $count;
?>
</body>
</html>
<html> <body>
<h1>Number</h1>
<form action="#" method ="post"> <label for="number">Add</label> <input type="number" id="number" min="0" max="infinite"> <input type="submit" id= "submit" value ="Submit"><?php
</form>
if(isset($_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) <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"><br>
</form>
<?php
if(isset($_POST['submit']))
{
$number = $_POST['number'];
$file=fopen("current.txt", "a")
fwrite($file,"number :");
fwrite = ($file, $number ."\n");
fclose($file);
}
?>
</body>
</html>
<!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)
<!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"><br>
<input type="submit" name="subm" value="Submit">
</form>
<?php
if (isset($_POST['subm'])) {
calc_sum($_POST['Num']);
}
?>
</body>
</html>
<!DOCTYPE html>
<head>
<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>
<!DOCTYPE html>
<head>
<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>
<!-- place holder, not working -->
<!DOCTYPE html>
<html>
<body>
<form method = "post">
<label for="field">Add number:</label></form>
<input type="number" id="field" name="field">
<input type="submit" value="Submit Number">
Numbers Entered: <?php
$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);
}
?>
</body>
</html>
(Edited: 2021-03-03) <!-- place holder, not working -->
<!DOCTYPE html>
<html>
<body>
<form method = "post">
<label for="field">Add number:</label><br>
<input type="number" id="field" name="field"><br>
<input type="submit" value="Submit Number">
</form>
Numbers Entered: <?php
$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, $nums);
}
?>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
(Edited: 2021-03-03)
<head>
<title>In-class exercise</title>
</head>
<body>
<form method="post" action="addme.php">
<label for="addNumber">Number to Add </label>
<input type="text" name="addNumber" size="10" />
<button type="Submit" size="10" name="click">Add</button>
</form>
<?php
if (isset($_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, $count);
}
?>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<title>In-class exercise</title>
</head>
<body>
<form method="post" action="addme.php">
<label for="addNumber">Number to Add </label>
<input type="text" name="addNumber" size="10" />
<button type="Submit" size="10" name="click">Add</button>
</form>
<?php
if (isset($_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) <pre>
<?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);
</pre>
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