|<- [[Strings]]|[[Numbers part one - Integers]] ->|

===== string functions =====

==== .= ====
<code>
$un = "";
$un .= "un";
</code>

==== lower/uppercase etc. ====

  * strtolower($String) -> lowercase
  * strtoupper($String) -> uppercase
  * ucfirst($String) -> capitalize first character
  * ucwords($String) -> capitalize words

==== length ====

<code>
echo strlen("un"); // 2
</code>

==== trim ====

Remove leadin or trailing whitespace.

<code>
echo "A" .trim(" B C D ") . "E"; // "AB C DE"
</code>

==== find ====

Retourne le string recherché et tout ce qui suit.

<code>
$str = "vamos a la playa";
echo strstr($str, "la"); // "la playa"
echo strstr($str, "yolo"); //  rien
</code>

==== replace ====

<code>
$str = "vamos a la playa";
echo str_replace("la playa", "bailar la bamba", $str); // vamos a bailar la bamba
</code>

==== repeat ====

<code>
$str = "go ! ";
echo str_repeat($str, 3); // "go ! go ! go ! "
</code>

==== make substring ====

<code>
$str = "0123456789";
echo substr($str, 1,8); // "12345678";
</code>

==== find position ====

<code>
$str = "0123456789";
echo strpos($str, "234"); // 2
</code>

==== find character ====

<code>
$str = "0123456789";
echo strchr($str, "8"); // "89"
echo strchr($str, "a"); // rien
$str = "abba";
echo strchr($str, "a"); // "abba"
$str = "gabba";
echo strchr($str, "a"); // "abba"
</code>