strtolower

Exemple

Convertissez tous les caractères en minuscules:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">Echo</span> <span class="token function">Strtolower</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hello World."</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Essayez-le vous-même