substr_replace

Name:substr_replace

Kategorie:Saite

Programmiersprache:php

Kurzbeschreibung:Ersetzen Sie einen Teil der Zeichenfolge durch eine andere Zeichenfolge.

Beispiel

Beispiel 1

Ersetzen Sie "Hallo" durch "Welt":

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">echo</span> <span class="token function">substr_replace</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hallo"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Welt"</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Probieren Sie es selbst aus

Beispiel 2

Ersetzen Sie aus der 6. Position der Saite (ersetzen Sie "Welt" durch "Shanghai"):

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">echo</span> <span class="token function">substr_replace</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hallo Welt"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Shanghai"</span> <span class="token punctuation">,</span> <span class="token number">6</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Probieren Sie es selbst aus

Beispiel 3

Ersetzen Sie aus der 5. Position am Ende der Saite (ersetzen Sie "Welt" durch "Shanghai"):

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">echo</span> <span class="token function">substr_replace</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Hallo Welt"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Shanghai"</span> <span class="token punctuation">,</span> <span class="token operator">-</span> <span class="token number">5</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Probieren Sie es selbst aus

Beispiel 4

Fügen Sie "Hallo" zu Beginn von "World" ein:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">echo</span> <span class="token function">substr_replace</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Welt"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Hallo"</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Probieren Sie es selbst aus

Beispiel 5

Ersetzen Sie mehrere Zeichenfolgen gleichzeitig. Ersetzen Sie "AAA" in jeder Zeichenfolge durch "BBB":

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ ersetzen</span> <span class="token operator">=</span> <span class="token keyword">Array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"1: aaa"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"2: aaa"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"3: aaa"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">implode</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">,</span> <span class="token function">substr_replace</span> <span class="token punctuation">(</span> <span class="token variable">$ ersetzen</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;bbb&#39;</span> <span class="token punctuation">,</span> <span class="token number">3</span> <span class="token punctuation">,</span> <span class="token number">3</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Probieren Sie es selbst aus

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