PHP/String/strcmp

Comparing strings with strcmp()

   <source lang="html4strict">

<? $x = strcmp("x54321","x5678"); if ($x > 0) {

   print ""x54321" is greater than the string "x5678".";

} elseif ($x < 0) {

   print ""x54321" is less than the string "x5678".";

} $x = strcmp("54321","5678"); if ($x > 0) {

   print ""54321" is greater than the string "5678".";

} elseif ($x < 0) {

   print ""54321" is less than the string "5678".";

} $x = strcmp("6 p","55 c"); if ($x > 0) {

   print ""6 p" is greater than than the string "55 c".";

} elseif ($x < 0) {

   print ""6 p" is less than the string "55 c".";

} $x = strcmp("6 pack",55); if ($x > 0) {

   print "The string "6 pack" is greater than the number 55.";

} elseif ($x < 0) {

   print "The string "6 pack" is less than the number 55.";

} ?>

 </source>
   
  

For example, using my collation rules (Canadian-English), I obtain the following results:

   <source lang="html4strict">

echo strcmp ("Apple", "Banana"); // returns < 0 echo strcmp ("apple", "Apple"); // returns > 0 echo strcmp ("1", "test"); // returns < 0

 </source>
   
  

int strcmp ( string str1, string str2 ), case-insensitive sibling, strcasecmp( )

   <source lang="html4strict">

<?

   $string1 = "foo";
   $string2 = "bar";
   $result = strcmp($string1, $string2);
   switch ($result) {
           case -1: print "Foo comes before bar"; break;
           case 0: print "Foo and bar are the same"; break;
           case 1: print "Foo comes after bar"; break;
   }

?>

 </source>
   
  

strcmp() function performs a case-sensitive comparison of two strings.

   <source lang="html4strict">

Its syntax follows: int strcmp (string string1, string string2) strcmp() returns one of three possible values: 0 if string1 and string2 are equal < 0 if string1 is less than string2 > 0 if string2 is less than string1 <? $string1 = "butter"; $string2 = "butter"; if ((strcmp($string1, $string2)) == 0) :

    print "Strings are equivalent!";

endif; ?>

 </source>