strncmp

Definition and usage

strncmp() function compares two strings.

Note: strncmp() is binary-safe and case-sensitive.

Tip: This function is similar to the strcmp() function. The difference is that strcmp() does not have a length parameter.

Example

Example 1

Compare two strings (case sensitive):

 <?php
echo strncmp ( "I love China!" , "I love Shanghai!" , 6 ) ;
?>

Try it yourself

Example 2

Comparing two strings (case sensitive, China and CHINA outputs are different):

 <?php
echo strncmp ( "China" , "China" , 6 ) ;
echo "<br>" ;
echo strncmp ( "China" , "CHINA" , 6 ) ;
?>

Try it yourself

grammar

 strncmp ( string1 , string2 , length )