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138 lines
2.4 KiB
PHP
138 lines
2.4 KiB
PHP
--TEST--
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Test function_exists() function : usage variations - test values for $str argument
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--FILE--
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<?php
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/*
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* proto bool function_exists(string function_name)
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* Function is implemented in Zend/zend_builtin_functions.c
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*/
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echo "*** Testing function_exists() function: with unexpected inputs for 'str' argument ***\n";
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//get an unset variable
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$unset_var = 'string_val';
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unset($unset_var);
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//defining a class
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class sample {
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public function __toString() {
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return "sample object";
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}
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}
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//getting the resource
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$file_handle = fopen(__FILE__, "r");
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// array with different values for $str
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$inputs = array (
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// integer values
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0,
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1,
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255,
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256,
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PHP_INT_MAX,
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-PHP_INT_MAX,
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// float values
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10.5,
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-20.5,
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10.1234567e10,
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// array values
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array(),
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array(0),
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array(1, 2),
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// boolean values
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true,
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false,
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TRUE,
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FALSE,
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// null values
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NULL,
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null,
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// objects
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new sample(),
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// resource
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$file_handle,
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// undefined variable
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@$undefined_var,
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// unset variable
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@$unset_var
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);
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// loop through with each element of the $inputs array to test function_exists() function
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$count = 1;
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foreach($inputs as $input) {
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echo "-- Iteration $count --\n";
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var_dump( function_exists($input) );
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$count ++;
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}
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fclose($file_handle); //closing the file handle
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?>
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===Done===
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--EXPECTF--
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*** Testing function_exists() function: with unexpected inputs for 'str' argument ***
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-- Iteration 1 --
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bool(false)
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-- Iteration 2 --
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bool(false)
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-- Iteration 3 --
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bool(false)
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-- Iteration 4 --
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bool(false)
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-- Iteration 5 --
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bool(false)
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-- Iteration 6 --
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bool(false)
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-- Iteration 7 --
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bool(false)
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-- Iteration 8 --
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bool(false)
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-- Iteration 9 --
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bool(false)
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-- Iteration 10 --
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Warning: function_exists() expects parameter 1 to be string, array given in %s on line %d
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NULL
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-- Iteration 11 --
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Warning: function_exists() expects parameter 1 to be string, array given in %s on line %d
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NULL
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-- Iteration 12 --
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Warning: function_exists() expects parameter 1 to be string, array given in %s on line %d
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NULL
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-- Iteration 13 --
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bool(false)
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-- Iteration 14 --
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bool(false)
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-- Iteration 15 --
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bool(false)
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-- Iteration 16 --
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bool(false)
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-- Iteration 17 --
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bool(false)
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-- Iteration 18 --
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bool(false)
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-- Iteration 19 --
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bool(false)
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-- Iteration 20 --
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Warning: function_exists() expects parameter 1 to be string, resource given in %s on line %d
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NULL
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-- Iteration 21 --
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bool(false)
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-- Iteration 22 --
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bool(false)
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===Done===
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