strcasecmp(3) [php man page]

STRCASECMP(3)								 1							     STRCASECMP(3)

strcasecmp - Binary safe case-insensitive string comparison

SYNOPSIS

       int strcasecmp (string  $str1, string  $str2)

DESCRIPTION

	Binary safe case-insensitive string comparison.

PARAMETERS

	      o $str1
		- The first string

	      o $str2
		- The second string

RETURN VALUES

	Returns < 0 if $str1 is less than $str2; > 0 if $str1 is greater than $str2, and 0 if they are equal.

EXAMPLES

       Example #1

	      strcasecmp(3) example

	      <?php
	      $var1 = "Hello";
	      $var2 = "hello";
	      if (strcasecmp($var1, $var2) == 0) {
		  echo '$var1 is equal to $var2 in a case-insensitive string comparison';
	      }
	      ?>

SEE ALSO

       strcmp(3), preg_match(3), substr_compare(3), strncasecmp(3), stristr(3), substr(3).

PHP Documentation Group 													     STRCASECMP(3)

STRNATCASECMP(3)							 1							  STRNATCASECMP(3)

strnatcasecmp - Case insensitive string comparisons using a ";natural order" algorithm

SYNOPSIS

       int strnatcasecmp (string  $str1, string  $str2)

DESCRIPTION

	This  function	implements  a  comparison algorithm that orders alphanumeric strings in the way a human being would. The behaviour of this
       function is similar to strnatcmp(3), except that the comparison is not case sensitive. For more	information  see:  Martin  Pool's  Natural
       Order String Comparison page.

PARAMETERS

	      o $str1
		- The first string.

	      o $str2
		- The second string.

RETURN VALUES

	Similar  to  other string comparison functions, this one returns < 0 if $str1 is less than $str2 > 0 if $str1 is greater than $str2, and 0
       if they are equal.

SEE ALSO

       preg_match(3), strcmp(3), strcasecmp(3), substr(3), stristr(3), strncasecmp(3), strncmp(3), strstr(3), setlocale(3).

PHP Documentation Group 													  STRNATCASECMP(3)