preg_replace
Führen Sie eine regelmäßige Ausdruckssuche und einen Austausch durch
Ersetzen Sie "Microsoft" mit "W3school" in der Zeichenfolge "Microsoft" durch Fall-unempfindliche Ausdrücke: Microsoft ":
<span class="token php language-php"><span class="token delimiter important"><? Php</span> <span class="token variable">$ str</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'Besuch Microsoft!'</span> <span class="token punctuation">;</span> <span class="token variable">$ muster</span> <span class="token operator">=</span> <span class="token string single-quoted-string">'/microsoft/i'</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">preg_replace</span> <span class="token punctuation">(</span> <span class="token variable">$ muster</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">'w3school'</span> <span class="token punctuation">,</span> <span class="token variable">$ str</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>