Usefull Strings-Specific Functions

PHP has a slew of usefull string specific functions. Which you'll see future.

Ec: To see how long a string is ( how many characters it containd), use strlen() ;
$num = strlen($string);

You can have PHP convert the case of your strings with: strtes/php/01/olower(), which makes it entirely lowercase; strtoupper(), which capitalizes the uppercase. ucfirst(), which capitalizes the first caharactors and, ucword(), which capitalizes the first charaacters of every word.

If you assing variable (say $book), the new value. If you are merely concatenating one value to nother, you use the concatenation assignment operator(.=).

$title = $title . $subtitle;
$title .= $subtitle;

The initial example in this sectioncould be rewritten using either

$name = "$first_name $last_name";
or
$name = $first_name;
$name .= "";
$name .= $last_name;

The connection operators can be used wothin your functions, like so:

print $first_name . ' ' . $last_name;

Ex: strings_function.phps | strings_function.php