setlocale

Example

Set the region to US English, and then reset it back to the system default:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">setlocale</span> <span class="token punctuation">(</span> <span class="token constant">LC_ALL</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"US"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">setlocale</span> <span class="token punctuation">(</span> <span class="token constant">LC_ALL</span> <span class="token punctuation">,</span> <span class="token constant">NULL</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Try it yourself