Compare length of two strings: Difference between revisions

Line 914:
</pre>
 
=={{header|PhpPHP}}==
<lang PHP>
<?php
 
 
function retrieveStrings()
{
if (isset($_POST['input'])) {
$strings = explode("\n", $_POST['input']);
} else {
$strings = ['abcd', '123456789', 'abcdef', '1234567'];
}
return $strings;
}
 
 
function setInput()
{
echo join("\n", retrieveStrings());
}
 
 
function setOutput()
{
$strings = retrieveStrings();
 
// Remove empty strings
//
$strings = array_map('trim', $strings);
$strings = array_filter($strings);
 
if (!empty($strings)) {
usort($strings, function ($a, $b) {
return strlen($b) - strlen($a);
});
$max_len = strlen($strings[0]);
$min_len = strlen($strings[count($strings) - 1]);
foreach ($strings as $s) {
$length = strlen($s);
if ($length == $max_len) {
$predicate = "is the longest string";
} elseif ($length == $min_len) {
$predicate = "is the shortest string";
} else {
$predicate = "is neither the longest nor the shortest string";
}
echo "$s has length $length and $predicate\n";
}
}
}
 
?>
 
 
<!DOCTYPE html>
<html lang="en">
 
<head>
<style>
div {
margin-top: 4ch;
margin-bottom: 4ch;
}
 
label {
display: block;
margin-bottom: 1ch;
}
 
textarea {
display: block;
}
 
input {
display: block;
margin-top: 4ch;
margin-bottom: 4ch;
}
</style>
</head>
 
 
<body>
<main>
<form action=<?php echo $_SERVER['SCRIPT_NAME'] ?> method="post" accept-charset="utf-8">
<div>
<label for="input">Input:
</label>
<textarea rows='20' cols='80' name='input'><?php setInput(); ?></textarea>
</label>
</div>
<input type="submit" value="press to compare strings">
</input>
<div>
<label for="Output">Output:
</label>
<textarea rows='20' cols='80' name='output'><?php setOutput(); ?></textarea>
</div>
</form>
</main>
</body>
 
</html></lang>
 
=={{header|Python}}==