* This function cleans a string, then calls a function with
* the string as a parameter.
*
* See that strange keyword in front of $callback? This is called a "type hint".
* It means that whatever is passed in as that parameter must be a function.
*
* Can you implement this function?
*/
function clean_then_call($string, callable $callback)
{
// Use the string cleaning procedure we came up with in exercise 1 on $string
// return the result of the $callback function with $string passed in as a parameter
}
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
<p>
<?php
// MD5 is a hashing algorithm that is commonly used to store passwords
echo clean_then_call(' jAsOn hUnTeR', 'md5');
?>
</p>
<p>
<?php
// Write your own using clean_then_call and a closure to manipulate the string further
?>
</p>
</body>
</html>
*
* Can you implement this function?
*/
function clean_then_call($string, callable $callback)
{
// Use the string cleaning procedure we came up with in exercise 1 on $string
// return the result of the $callback function with $string passed in as a parameter
$mod_string = "";
$mod_string = ucwords(strtolower(trim($string)));
dd($mod_string);
return $callback($mod_string);
}
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
<p>
<?php
// MD5 is a hashing algorithm that is commonly used to store passwords
echo clean_then_call(' jAsOn hUnTeR', 'md5');
?>
</p>
<p>
<?php
// Write your own using clean_then_call and a closure to manipulate the string further
echo clean_then_call("G0rdon FreeMAN", "md5");
?>
</p>
</body>
</html>
{
// Use the string cleaning procedure we came up with in exercise 1 on $string
$string = ucwords(strtolower(trim($string)));
return $callback($string);
// return the result of the $callback function with $string passed in as a parameter
}
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
<p>
<?php
// MD5 is a hashing algorithm that is commonly used to store passwords
// echo clean_then_call(' jAsOn hUnTeR', 'md5') . '<br />';
?>
</p>
<p>
<?php
echo clean_then_call('Chuck Pavlick', function ($name) {
//uses closure, a function w/ no name for one time use
$name = strtoupper($name);
//customizes what function does
$name = strrev($name);
return $name;
//saves data
});
?>
</p>
</body>
</html>
function clean_then_call($string, callable $callback)
{
// Use the string cleaning procedure we came up with in exercise 1 on $string
$string = ucwords(strtolower(trim($string)));
//Sanitize name
// return the result of the $callback function with $string passed in as a parameter
return $callback($string);
}
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
<p>
<?php
// MD5 is a hashing algorithm that is commonly used to store passwords
echo clean_then_call(' jAsOn hUnTeR', 'md5');
?>
</p>
<p>
<?php
// Write your own using clean_then_call and a closure to manipulate the string further
$cleaned = clean_then_call("JaCOb fOArD", function ($name) {
$lenth = strlen($name);
return "{$name} - {$lenth}";
});
echo $cleaned;
?>
</p>
</body>
</html>
