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