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221 lines
4.1 KiB
PHP
221 lines
4.1 KiB
PHP
--TEST--
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Test key() function : usage variations - Pass different data types as $array_arg arg.
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--FILE--
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<?php
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/* Prototype : mixed key(array $array_arg)
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* Description: Return the key of the element currently pointed to by the internal array pointer
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* Source code: ext/standard/array.c
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*/
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/*
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* Pass different data types as $array_arg argument to test behaviour of key()
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*/
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echo "*** Testing key() : usage variations ***\n";
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//get an unset variable
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$unset_var = 10;
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unset ($unset_var);
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// get a class
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class classA
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{
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var $var1;
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public function __toString() {
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return "Class A object";
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}
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}
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// heredoc string
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$heredoc = <<<EOT
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hello world
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EOT;
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// get a resource variable
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$fp = fopen(__FILE__, "r");
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// unexpected values to be passed to $array_arg argument
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$inputs = array(
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// int data
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/*1*/ 0,
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1,
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12345,
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-2345,
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// float data
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/*5*/ 10.5,
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-10.5,
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12.3456789000e10,
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12.3456789000E-10,
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.5,
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// null data
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/*10*/ NULL,
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null,
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// boolean data
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/*12*/ true,
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false,
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TRUE,
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FALSE,
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// empty data
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/*16*/ "",
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'',
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array(),
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// string data
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/*19*/ "string",
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'string',
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$heredoc,
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// object data
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/*22*/ new classA(),
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// undefined data
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/*23*/ @$undefined_var,
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// unset data
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/*24*/ @$unset_var,
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// resource variable
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/*25*/ $fp
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);
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// loop through each element of $inputs to check the behavior of key()
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$iterator = 1;
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foreach($inputs as $input) {
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echo "\n-- Iteration $iterator --\n";
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var_dump( key($input) );
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$iterator++;
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};
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fclose($fp);
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?>
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===DONE===
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--EXPECTF--
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*** Testing key() : usage variations ***
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-- Iteration 1 --
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Warning: key() expects parameter 1 to be array, integer given in %s on line %d
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NULL
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-- Iteration 2 --
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Warning: key() expects parameter 1 to be array, integer given in %s on line %d
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NULL
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-- Iteration 3 --
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Warning: key() expects parameter 1 to be array, integer given in %s on line %d
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NULL
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-- Iteration 4 --
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Warning: key() expects parameter 1 to be array, integer given in %s on line %d
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NULL
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-- Iteration 5 --
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Warning: key() expects parameter 1 to be array, float given in %s on line %d
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NULL
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-- Iteration 6 --
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Warning: key() expects parameter 1 to be array, float given in %s on line %d
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NULL
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-- Iteration 7 --
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Warning: key() expects parameter 1 to be array, float given in %s on line %d
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NULL
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-- Iteration 8 --
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Warning: key() expects parameter 1 to be array, float given in %s on line %d
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NULL
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-- Iteration 9 --
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Warning: key() expects parameter 1 to be array, float given in %s on line %d
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NULL
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-- Iteration 10 --
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Warning: key() expects parameter 1 to be array, null given in %s on line %d
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NULL
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-- Iteration 11 --
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Warning: key() expects parameter 1 to be array, null given in %s on line %d
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NULL
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-- Iteration 12 --
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Warning: key() expects parameter 1 to be array, boolean given in %s on line %d
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NULL
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-- Iteration 13 --
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Warning: key() expects parameter 1 to be array, boolean given in %s on line %d
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NULL
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-- Iteration 14 --
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Warning: key() expects parameter 1 to be array, boolean given in %s on line %d
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NULL
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-- Iteration 15 --
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Warning: key() expects parameter 1 to be array, boolean given in %s on line %d
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NULL
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-- Iteration 16 --
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Warning: key() expects parameter 1 to be array, string given in %s on line %d
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NULL
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-- Iteration 17 --
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Warning: key() expects parameter 1 to be array, string given in %s on line %d
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NULL
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-- Iteration 18 --
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NULL
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-- Iteration 19 --
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Warning: key() expects parameter 1 to be array, string given in %s on line %d
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NULL
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-- Iteration 20 --
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Warning: key() expects parameter 1 to be array, string given in %s on line %d
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NULL
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-- Iteration 21 --
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Warning: key() expects parameter 1 to be array, string given in %s on line %d
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NULL
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-- Iteration 22 --
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string(4) "var1"
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-- Iteration 23 --
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Warning: key() expects parameter 1 to be array, null given in %s on line %d
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NULL
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-- Iteration 24 --
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Warning: key() expects parameter 1 to be array, null given in %s on line %d
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NULL
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-- Iteration 25 --
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Warning: key() expects parameter 1 to be array, resource given in %s on line %d
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NULL
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===DONE===
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