strcmp

Example

Example 1

Compare two strings (case sensitive):

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strcmp</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">"Hello world!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Example 2

Comparing two strings (case sensitive, Hello and hELLo outputs are different):

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strcmp</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">"Hello"</span> <span class="token punctuation">)</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 function">strcmp</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">"hELLo"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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Example 3

Different return values:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span> <span class="token function">strcmp</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">"Hello world!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// Two strings are equal</span>
<span class="token keyword">echo</span> <span class="token function">strcmp</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">"Hello"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// <i>string1</i> is greater than <i>string2</i></span>
<span class="token keyword">echo</span> <span class="token function">strcmp</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">"Hello world! Hello!"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// <i>string1</i> is less than <i>string2</i></span>
<span class="token delimiter important">?></span></span>

Try it yourself