str_word_count
文字列で使用されている単語に関する情報を返します
文字列の単語数を計算します「私は上海を愛しています!」:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token keyword">echo</span> <span class="token function">str_word_count</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"私は上海が大好き!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>
文字列に単語を含む配列を返します。
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">str_word_count</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"私はShanghaiが大好き!"</span> <span class="token punctuation">、</span> <span class="token number">1</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>
キー名が文字列内の単語の位置であり、キー値が実際の単語である配列を返します。
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">str_word_count</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"私は上海!"</span> <span class="token punctuation">、</span> <span class="token number">2</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>
CHARパラメーターを設定して設定しない:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">str_word_count</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"私は上海&おはようが大好き!"</span> <span class="token punctuation">、</span> <span class="token number">1</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">str_word_count</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"私はShanghai&Good Morning!"</span> <span class="token punctuation">、</span> <span class="token number">1</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"&"</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>