in_array

Name:in_array

Category:Array

Programming Language:php

One-line Description:Checks whether the specified value exists in the array.

Example

Example 1

Search the value "Glenn" in the array and output some text:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$people</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Bill"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Steve"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Mark"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"David"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token function"></span></span><mark> <span class="token function">in_array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Mark"</span> <span class="token punctuation">,</span> <span class="token variable">$people</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match Found"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">else</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match not found"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token delimiter important">?></span>

Try it yourself

Example 2

Use all parameters:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$people</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Bill"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Steve"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Mark"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"David"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token function"></span></span><mark> <span class="token function">in_array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"23"</span> <span class="token punctuation">,</span> <span class="token variable">$people</span> <span class="token punctuation">,</span> <span class="token constant boolean">TRUE</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match Found<br>"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">else</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match not found<br>"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span> <span class="token function">in_array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Mark"</span> <span class="token punctuation">,</span> <span class="token variable">$people</span> <span class="token punctuation">,</span> <span class="token constant boolean">TRUE</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match Found<br>"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">else</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match not found<br>"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>

<span class="token keyword">if</span> <span class="token punctuation">(</span> <span class="token function">in_array</span> <span class="token punctuation">(</span> <span class="token number">23</span> <span class="token punctuation">,</span> <span class="token variable">$people</span> <span class="token punctuation">,</span> <span class="token constant boolean">TRUE</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match Found<br>"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">else</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"Match not found<br>"</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token delimiter important">?></span>

Try it yourself