substr_replace

名前:substr_replace

カテゴリ:弦

対応言語:php

一言説明:文字列の一部を別の文字列に置き換えます。

例

例1

「ハロー」を「世界」に置き換えます：

 <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">"hello"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"world"</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>

自分で試してみてください

例2

文字列の6番目の位置から置き換えます（「世界」を「上海」に置き換えます）：

 <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">"hello world"</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>

自分で試してみてください

例3

文字列の最後の5番目の位置から置き換えます（「世界」を「上海」に置き換えます）：

 <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">"hello world"</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>

自分で試してみてください

例4

「世界」の冒頭に「こんにちは」を挿入します：

 <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 punctuation">world</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"hello</span> <span class="token number">"</span> <span class="token punctuation">、</span> <span class="token number">0、0</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span></span>

自分で試してみてください

例5

一度に複数の文字列を交換します。各文字列の「AAA」を「BBB」に置き換えます。

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ cheplage</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">Inprode</span> <span class="token punctuation">（</span> " <span class="token punctuation"><br></span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">、</span> <span class="token function">substr_replace</span> <span class="token punctuation">（</span> <span class="token variable">$ cheplace</span> <span class="token punctuation">、</span> <span class="token string single-quoted-string">&#39;bbb</span> <span class="token punctuation">&#39;</span> <span class="token punctuation">、</span> <span class="token number">3、3</span> <span class="token number">）</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span></span>

自分で試してみてください