1--TEST-- 2Test count() function 3--FILE-- 4<?php 5/* Prototype: int count ( mixed $var [, int $mode] ); 6 Discription: Count elements in an array, or properties in an object 7*/ 8 9echo "*** Testing basic functionality of count() function ***\n"; 10print "-- Testing NULL --\n"; 11$arr = NULL; 12print "COUNT_NORMAL: should be 0, is ".count($arr, COUNT_NORMAL)."\n"; 13print "COUNT_RECURSIVE: should be 0, is ".count($arr, COUNT_RECURSIVE)."\n"; 14 15print "-- Testing arrays --\n"; 16$arr = array(1, array(3, 4, array(6, array(8)))); 17print "COUNT_NORMAL: should be 2, is ".count($arr, COUNT_NORMAL)."\n"; 18print "COUNT_RECURSIVE: should be 8, is ".count($arr, COUNT_RECURSIVE)."\n"; 19 20print "-- Testing hashes --\n"; 21$arr = array("a" => 1, "b" => 2, array("c" => 3, array("d" => 5))); 22print "COUNT_NORMAL: should be 3, is ".count($arr, COUNT_NORMAL)."\n"; 23print "COUNT_RECURSIVE: should be 6, is ".count($arr, COUNT_RECURSIVE)."\n"; 24 25print "-- Testing strings --\n"; 26print "COUNT_NORMAL: should be 1, is ".count("string", COUNT_NORMAL)."\n"; 27print "COUNT_RECURSIVE: should be 1, is ".count("string", COUNT_RECURSIVE)."\n"; 28 29print "-- Testing various types with no second argument --\n"; 30print "COUNT_NORMAL: should be 1, is ".count("string")."\n"; 31print "COUNT_NORMAL: should be 2, is ".count(array("a", array("b")))."\n"; 32 33$arr = array('a'=>array(NULL, NULL, NULL), 1=>array(NULL=>1, 1=>NULL), 34 array(array(array(array(array(NULL)))))); 35print "-- Testing really cool arrays --\n"; 36print "COUNT_NORMAL: should be 3, is ".count($arr, COUNT_NORMAL)."\n"; 37print "COUNT_RECURSIVE: should be 13, is ".count($arr, COUNT_RECURSIVE)."\n"; 38 39echo "\n*** Testing possible variations of count() function on arrays ***"; 40$count_array = array( 41 array(), 42 array( 1 => "string"), 43 array( "" => "string", 0 => "a", NULL => "b", -1.00 => "c", 44 array(array(array(NULL)))), 45 array( -2.44444 => 12, array(array(1, 2, array(array("0"))))), 46 array( "a" => 1, "b" => -2.344, "b" => "string", "c" => NULL, "d" => -2.344), 47 array( 4 => 1, 3 => -2.344, "3" => "string", "2" => NULL, 48 1 => -2.344, array()), 49 array( TRUE => TRUE, FALSE => FALSE, "" => "", " " => " ", 50 NULL => NULL, "\x000" => "\x000", "\000" => "\000"), 51 array( NULL, 1.23 => "Hi", "string" => "hello", 52 array("" => "World", "-2.34" => "a", "0" => "b")) 53); 54 55$i = 0; 56foreach ($count_array as $count_value) { 57 echo "\n-- Iteration $i --\n"; 58 print "COUNT_NORMAL is ".count($count_value, COUNT_NORMAL)."\n"; 59 print "COUNT_RECURSIVE is ".count($count_value, COUNT_RECURSIVE)."\n"; 60 $i++; 61} 62 63 64/* Testing count() by passing constant with no second argument */ 65print "\n-- Testing count() on constants with no second argument --\n"; 66print "COUNT_NORMAL: should be 1, is ".count(100)."\n"; 67print "COUNT_NORMAL: should be 1, is ".count(-23.45)."\n"; 68 69print "\n-- Testing count() on NULL and Unset variables --\n"; 70print "COUNT_NORMAL: should be 0, is ".count(NULL)."\n"; 71print "COUNT_NORMAL: should be 1, is ".count("")."\n"; 72print "COUNT_NORMAL: should be 0, is ".@count($a)."\n"; 73 74 75print "\n-- Testing count() on an empty sub-array --\n"; 76$arr = array(1, array(3, 4, array())); 77print "COUNT_NORMAL: should be 2, is ".count($arr, COUNT_NORMAL)."\n"; 78print "COUNT_RECURSIVE: should be 5, is ".count($arr, COUNT_RECURSIVE)."\n"; 79 80echo "\n-- Testing count() on objects with Countable interface --\n"; 81class count_class implements Countable { 82 private $var_private; 83 public $var_public; 84 protected $var_protected; 85 86 public function count() { 87 return 3; 88 } 89} 90 91$obj = new count_class(); 92print "COUNT_NORMAL: should be 3, is ".count($obj)."\n"; 93 94 95echo "\n-- Testing count() on resource type --\n"; 96$resource1 = fopen( __FILE__, "r" ); // Creating file(stream type) resource 97$resource2 = opendir( "." ); // Creating dir resource 98 99/* creating an array with resources as elements */ 100$arr_resource = array("a" => $resource1, "b" => $resource2); 101var_dump(count($arr_resource)); 102 103echo "\n-- Testing count() on arrays containing references --\n"; 104$arr = array(1, array("a", "b", "c")); 105$arr[2] = &$arr[1]; 106 107$mode_arr = array( COUNT_NORMAL, COUNT_RECURSIVE, 0, 1, -1, -1.45, 2, TRUE, 108 FALSE, NULL); 109for( $i =0; $i < count( $mode_arr ); $i++) { 110 echo "For mode '$mode_arr[$i]' count is => "; 111 var_dump(count($arr, $mode_arr[$i])); 112} 113 114 115echo "\n-- Testing error conditions --"; 116var_dump( count() ); // No. of args = 0 117var_dump( count(array(), COUNT_NORMAL, 100) ); // No. of args > expected 118 119/* Testing Invalid type arguments */ 120var_dump( count("string", ABCD) ); 121var_dump( count(100, "string") ); 122var_dump( count(array(), "") ); 123 124echo "\nDone"; 125 126/* closing the resource handles */ 127fclose( $resource1 ); 128closedir( $resource2 ); 129?> 130--EXPECTF-- 131*** Testing basic functionality of count() function *** 132-- Testing NULL -- 133 134Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 135COUNT_NORMAL: should be 0, is 0 136 137Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 138COUNT_RECURSIVE: should be 0, is 0 139-- Testing arrays -- 140COUNT_NORMAL: should be 2, is 2 141COUNT_RECURSIVE: should be 8, is 8 142-- Testing hashes -- 143COUNT_NORMAL: should be 3, is 3 144COUNT_RECURSIVE: should be 6, is 6 145-- Testing strings -- 146 147Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 148COUNT_NORMAL: should be 1, is 1 149 150Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 151COUNT_RECURSIVE: should be 1, is 1 152-- Testing various types with no second argument -- 153 154Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 155COUNT_NORMAL: should be 1, is 1 156COUNT_NORMAL: should be 2, is 2 157-- Testing really cool arrays -- 158COUNT_NORMAL: should be 3, is 3 159COUNT_RECURSIVE: should be 13, is 13 160 161*** Testing possible variations of count() function on arrays *** 162-- Iteration 0 -- 163COUNT_NORMAL is 0 164COUNT_RECURSIVE is 0 165 166-- Iteration 1 -- 167COUNT_NORMAL is 1 168COUNT_RECURSIVE is 1 169 170-- Iteration 2 -- 171COUNT_NORMAL is 4 172COUNT_RECURSIVE is 7 173 174-- Iteration 3 -- 175COUNT_NORMAL is 2 176COUNT_RECURSIVE is 8 177 178-- Iteration 4 -- 179COUNT_NORMAL is 4 180COUNT_RECURSIVE is 4 181 182-- Iteration 5 -- 183COUNT_NORMAL is 5 184COUNT_RECURSIVE is 5 185 186-- Iteration 6 -- 187COUNT_NORMAL is 6 188COUNT_RECURSIVE is 6 189 190-- Iteration 7 -- 191COUNT_NORMAL is 4 192COUNT_RECURSIVE is 7 193 194-- Testing count() on constants with no second argument -- 195 196Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 197COUNT_NORMAL: should be 1, is 1 198 199Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 200COUNT_NORMAL: should be 1, is 1 201 202-- Testing count() on NULL and Unset variables -- 203 204Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 205COUNT_NORMAL: should be 0, is 0 206 207Warning: count(): Parameter must be an array or an object that implements Countable in %s on line %d 208COUNT_NORMAL: should be 1, is 1 209COUNT_NORMAL: should be 0, is 0 210 211-- Testing count() on an empty sub-array -- 212COUNT_NORMAL: should be 2, is 2 213COUNT_RECURSIVE: should be 5, is 5 214 215-- Testing count() on objects with Countable interface -- 216COUNT_NORMAL: should be 3, is 3 217 218-- Testing count() on resource type -- 219int(2) 220 221-- Testing count() on arrays containing references -- 222For mode '0' count is => int(3) 223For mode '1' count is => int(9) 224For mode '0' count is => int(3) 225For mode '1' count is => int(9) 226For mode '-1' count is => int(3) 227For mode '-1.45' count is => int(3) 228For mode '2' count is => int(3) 229For mode '1' count is => int(9) 230For mode '' count is => int(3) 231For mode '' count is => int(3) 232 233-- Testing error conditions -- 234Warning: count() expects at least 1 parameter, 0 given in %s on line %d 235NULL 236 237Warning: count() expects at most 2 parameters, 3 given in %s on line %d 238NULL 239 240Warning: Use of undefined constant ABCD - assumed 'ABCD' (this will throw an Error in a future version of PHP) in %s on line %d 241 242Warning: count() expects parameter 2 to be int, %s given in %s on line %d 243NULL 244 245Warning: count() expects parameter 2 to be int, %s given in %s on line %d 246NULL 247 248Warning: count() expects parameter 2 to be int, %s given in %s on line %d 249NULL 250 251Done 252
