join

Name:join

Category:String

Programming Language:php

One-line Description:The alias for implode() .

Example

Example 1

Combine array elements into a string:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$arr</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string single-quoted-string">&#39;Hello&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;World!&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;I&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;love&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;Shanghai!&#39;</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">join</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">" "</span> <span class="token punctuation">,</span> <span class="token variable">$arr</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Try it yourself

Example 2

Separate array elements with different characters:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$arr</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string single-quoted-string">&#39;Hello&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;World!&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;I&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;love&#39;</span> <span class="token punctuation">,</span> <span class="token string single-quoted-string">&#39;Shanghai!&#39;</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">join</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">" "</span> <span class="token punctuation">,</span> <span class="token variable">$arr</span> <span class="token punctuation">)</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">join</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"+"</span> <span class="token punctuation">,</span> <span class="token variable">$arr</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">join</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"-"</span> <span class="token punctuation">,</span> <span class="token variable">$arr</span> <span class="token punctuation">)</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">join</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"X"</span> <span class="token punctuation">,</span> <span class="token variable">$arr</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Try it yourself