rtrim
文字列の最後でwhitespace文字（または他の文字）を削除する
日本語
日本語
文字列の右側から文字を削除します。
<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 double-quoted-string">"hello world！"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token variable">$ str</span> <span class="token operator">。</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">rtrim</span> <span class="token punctuation">（</span> <span class="token variable">$ str</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"world！"</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span> <span class="token delimiter important">？></span></span>
文字列の右側のスペースを削除します。
<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 double-quoted-string">"hello world！"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token string double-quoted-string">"rtrim："を使用しないでください： "</span> <span class="token operator">。</span> <span class="token variable">$ str</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 string double-quoted-string">"rtrim："を使用します</span><span class="token operator">。</span> <span class="token function">rtrim</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>
上記のコードのHTML出力は次のとおりです（ソースコードを参照）：
<span class="token operator"><</span> <span class="token operator">！</span> <span class="token constant">Doctype</span> HTML <span class="token operator">></span> <span class="token operator"><html></span><span class="token operator"></span> <span class="token operator"><body></span><span class="token operator"></span> rtrim：hello worldを使用しないでください<span class="token operator">！</span> <span class="token operator"><br></span> rtrim <span class="token operator">：</span> hello world <span class="token operator">！</span> <span class="token operator"><</span> <span class="token operator">/</span> body <span class="token operator">></span> <span class="token operator"><</span> <span class="token operator">/</span> html <span class="token operator">></span>
上記のコードのブラウザ出力：
rtrim：hello worldを使用しないでください！ Rtrimを使用：Hello World！
文字列の右側に新しいライン文字（\ n）を削除します。
<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 double-quoted-string">"hello world！\ n \ n \ n"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token string double-quoted-string">"rtrim："を使用しないでください： "</span> <span class="token operator">。</span> <span class="token variable">$ str</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 string double-quoted-string">"rtrim："を使用します</span><span class="token operator">。</span> <span class="token function">rtrim</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>
上記のコードのHTML出力は次のとおりです（ソースコードを参照）：
<span class="token operator"><</span> <span class="token operator">！</span> <span class="token constant">Doctype</span> HTML <span class="token operator">></span> <span class="token operator"><html></span><span class="token operator"></span> <span class="token operator"><body></span><span class="token operator"></span> rtrim：hello worldを使用しないでください<span class="token operator">！</span> <span class="token operator"><br></span> rtrim <span class="token operator">：</span> hello world <span class="token operator">！</span> <span class="token operator"><</span> <span class="token operator">/</span> body <span class="token operator">></span> <span class="token operator"><</span> <span class="token operator">/</span> html <span class="token operator">></span>
上記のコードのブラウザ出力：
rtrim：hello worldを使用しないでください！ Rtrimを使用：Hello World！
str_repeat
str_pad
substr_compare
substr_replace
strrev
hebrevc
hebrev
strlen
