I'm stuck with an error message that I can't get around: Notice: Array to string conversion. I'm trying to print the highest value and its key of an array.
<?php
$length_array = array();
foreach ($_SERVER as $key => $value) {
$length = strlen($value);
$length_array[$key] = $length;
echo '<pre>';
print_r($key . " = " . $length . " characters");
echo '</pre>';
}
$max_key = array_keys($length_array, max($length_array));
print_r($max_key . " is longest with " . max($length_array) . " characters");
?>
The answer I get is: Array is longest with 444 characters.
How do I get around this?
array_keys() returns an array. If you expect only one key to have this value you can use array_search() instead:
$server = array_map("strlen", $_SERVER);
$max = max($server);
$max_key = array_search($max, $server);
echo "$max_key is longest with $max characters";
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