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1.1     ! misho       1: --TEST--
        !             2: Test strncmp() function : basic functionality 
        !             3: --FILE--
        !             4: <?php
        !             5: /* Prototype  : int strncmp ( string $str1, string $str2, int $len );
        !             6:  * Description: Binary safe case-sensitive string comparison of the first n characters
        !             7:  * Source code: Zend/zend_builtin_functions.c
        !             8: */
        !             9: 
        !            10: echo "*** Testing strncmp() function: basic functionality ***\n";
        !            11: 
        !            12: echo "-- Testing strncmp() with single quoted string --\n";
        !            13: var_dump( strncmp('Hello', 'Hello', 5) );  //expected: int(0)
        !            14: var_dump( strncmp('Hello', 'Hi', 5) );  //expected: value < 0
        !            15: var_dump( strncmp('Hi', 'Hello', 5) );  //expected: value > 0
        !            16: 
        !            17: echo "-- Testing strncmp() with double quoted string --\n";
        !            18: var_dump( strncmp("Hello", "Hello", 5) );  //expected: int(0)
        !            19: var_dump( strncmp("Hello", "Hi", 5) );  //expected: value < 0
        !            20: var_dump( strncmp("Hi", "Hello", 5) );  //expected: value > 0
        !            21: 
        !            22: echo "-- Testing strncmp() with here-doc string --\n";
        !            23: $str = <<<HEREDOC
        !            24: Hello
        !            25: HEREDOC;
        !            26: var_dump( strncmp($str, "Hello", 5) );  //expected: int(0)
        !            27: var_dump( strncmp($str, "Hi", 5) );  //expected: value < 0
        !            28: var_dump( strncmp("Hi", $str, 5) );  //expected: value > 0
        !            29: 
        !            30: echo "*** Done ***";
        !            31: ?>
        !            32: --EXPECTREGEX--
        !            33: \*\*\* Testing strncmp\(\) function: basic functionality \*\*\*
        !            34: -- Testing strncmp\(\) with single quoted string --
        !            35: int\(0\)
        !            36: int\(-[1-9][0-9]*\)
        !            37: int\([1-9][0-9]*\)
        !            38: -- Testing strncmp\(\) with double quoted string --
        !            39: int\(0\)
        !            40: int\(-[1-9][0-9]*\)
        !            41: int\([1-9][0-9]*\)
        !            42: -- Testing strncmp\(\) with here-doc string --
        !            43: int\(0\)
        !            44: int\(-[1-9][0-9]*\)
        !            45: int\([1-9][0-9]*\)
        !            46: \*\*\* Done \*\*\*