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LEARN ABOUT PHP

collator_compare

COLLATOR_COMPARE(3)							 1						       COLLATOR_COMPARE(3)

Collator::compare - Compare two Unicode strings

	Object oriented style

SYNOPSIS

       public int Collator::compare (string  $str1, string  $str2)

DESCRIPTION

	Procedural style
       int collator_compare (Collator  $coll, string  $str1, string  $str2)

	Compare two Unicode strings according to collation rules.

PARAMETERS

	      o $coll
		-Collator object.

	      o $str1
		- The first string to compare.

	      o $str2
		- The second string to compare.

RETURN VALUES

       Return comparison result:

	      o 1 if $str1 is
		greater than $str2 ;

	      o 0 if $str1 is
		equal to $str2;

	      o -1 if $str1 is
		less than $str2 .

	On error boolean FALSE is returned.

       Warning

	      This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
	      Booleans for more information. Use the === operator for testing the return value of this function.

EXAMPLES

       Example #1

	      collator_compare(3)example

	      <?php
	      $s1 = 'Hello';
	      $s2 = 'hello';

	      $coll = collator_create( 'en_US' );
	      $res  = collator_compare( $coll, $s1, $s2 );

	      if ($res === false) {
		  echo collator_get_error_message( $coll );
	      } else if( $res > 0 ) {
		  echo "s1 is greater than s2
";
	      } else if( $res < 0 ) {
		  echo "s1 is less than s2
";
	      } else {
		  echo "s1 is equal to s2
";
	      }
	      ?>

	      The above example will output:

SEE ALSO

       collator_sort(3).

PHP Documentation Group 												       COLLATOR_COMPARE(3)

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