Question

How to compare first N characters of a string in PHP

Answer 1

$s1 = "PHP is a general-purpose programming language originally designed for web development"; 
$s2 = "PHP programming language"; 
$s3 = "PHP c";
  
echo strncasecmp($s1, $s2, 3) . "<br />";  // equal

echo strncasecmp($s1, $s2, 5) . "<br />";  // s1 < s2

echo strncasecmp($s1, $s3, 5);  // s1 > s3
  
   
       
/*
run:
            
0
-7
6
     
*/

 

70+ SQL courses for beginners and professionals