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php

--TEST--
Test interface_exists() function : error conditions 
--FILE--
<?php
/* Prototype  : bool interface_exists(string classname [, bool autoload])
 * Description: Checks if the class exists 
 * Source code: Zend/zend_builtin_functions.c
 * Alias to functions: 
 */

echo "*** Testing interface_exists() : error conditions ***\n";

// Zero arguments
echo "\n-- Testing interface_exists() function with Zero arguments --\n";
var_dump( interface_exists() );

//Test interface_exists with one more than the expected number of arguments
echo "\n-- Testing interface_exists() function with more than expected no. of arguments --\n";
$classname = 'string_val';
$autoload = true;
$extra_arg = 10;
var_dump( interface_exists($classname, $autoload, $extra_arg) );

?>
===DONE===
--EXPECTF--
*** Testing interface_exists() : error conditions ***

-- Testing interface_exists() function with Zero arguments --

Warning: interface_exists() expects at least 1 parameter, 0 given in %sinterface_exists_error.php on line %d
NULL

-- Testing interface_exists() function with more than expected no. of arguments --

Warning: interface_exists() expects at most 2 parameters, 3 given in %sinterface_exists_error.php on line %d
NULL
===DONE===