1--TEST-- 2comparing different variables for identity 3--SKIPIF-- 4<?php if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platform only"); ?> 5--FILE-- 6<?php 7 8class test { 9} 10 11$a = array( 12 array(1,2,3), 13 "", 14 1, 15 2.5, 16 0, 17 "string", 18 "123", 19 "2.5", 20 NULL, 21 true, 22 false, 23 new stdclass, 24 new stdclass, 25 new test, 26 array(), 27 -PHP_INT_MAX-1, 28 (string)(-PHP_INT_MAX-1), 29); 30 31$var_cnt = count($a); 32 33function my_dump($var) { 34 ob_start(); 35 var_dump($var); 36 $buf = ob_get_clean(); 37 echo str_replace("\n", "", $buf); 38} 39 40foreach($a as $var) { 41 for ($i = 0; $i < $var_cnt; $i++) { 42 my_dump($var); 43 echo ($var === $a[$i]) ? " === " : " !== "; 44 my_dump($a[$i]); 45 echo "\n"; 46 } 47} 48 49echo "Done\n"; 50?> 51--EXPECTF-- 52array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} === array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 53array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== string(0) "" 54array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== int(1) 55array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== float(2.5) 56array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== int(0) 57array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== string(6) "string" 58array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== string(3) "123" 59array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== string(3) "2.5" 60array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== NULL 61array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== bool(true) 62array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== bool(false) 63array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== object(stdClass)#%d (0) {} 64array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== object(stdClass)#%d (0) {} 65array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== object(test)#%d (0) {} 66array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== array(0) {} 67array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== int(-9223372036854775808) 68array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} !== string(20) "-9223372036854775808" 69string(0) "" !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 70string(0) "" === string(0) "" 71string(0) "" !== int(1) 72string(0) "" !== float(2.5) 73string(0) "" !== int(0) 74string(0) "" !== string(6) "string" 75string(0) "" !== string(3) "123" 76string(0) "" !== string(3) "2.5" 77string(0) "" !== NULL 78string(0) "" !== bool(true) 79string(0) "" !== bool(false) 80string(0) "" !== object(stdClass)#%d (0) {} 81string(0) "" !== object(stdClass)#%d (0) {} 82string(0) "" !== object(test)#%d (0) {} 83string(0) "" !== array(0) {} 84string(0) "" !== int(-9223372036854775808) 85string(0) "" !== string(20) "-9223372036854775808" 86int(1) !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 87int(1) !== string(0) "" 88int(1) === int(1) 89int(1) !== float(2.5) 90int(1) !== int(0) 91int(1) !== string(6) "string" 92int(1) !== string(3) "123" 93int(1) !== string(3) "2.5" 94int(1) !== NULL 95int(1) !== bool(true) 96int(1) !== bool(false) 97int(1) !== object(stdClass)#%d (0) {} 98int(1) !== object(stdClass)#%d (0) {} 99int(1) !== object(test)#%d (0) {} 100int(1) !== array(0) {} 101int(1) !== int(-9223372036854775808) 102int(1) !== string(20) "-9223372036854775808" 103float(2.5) !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 104float(2.5) !== string(0) "" 105float(2.5) !== int(1) 106float(2.5) === float(2.5) 107float(2.5) !== int(0) 108float(2.5) !== string(6) "string" 109float(2.5) !== string(3) "123" 110float(2.5) !== string(3) "2.5" 111float(2.5) !== NULL 112float(2.5) !== bool(true) 113float(2.5) !== bool(false) 114float(2.5) !== object(stdClass)#%d (0) {} 115float(2.5) !== object(stdClass)#%d (0) {} 116float(2.5) !== object(test)#%d (0) {} 117float(2.5) !== array(0) {} 118float(2.5) !== int(-9223372036854775808) 119float(2.5) !== string(20) "-9223372036854775808" 120int(0) !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 121int(0) !== string(0) "" 122int(0) !== int(1) 123int(0) !== float(2.5) 124int(0) === int(0) 125int(0) !== string(6) "string" 126int(0) !== string(3) "123" 127int(0) !== string(3) "2.5" 128int(0) !== NULL 129int(0) !== bool(true) 130int(0) !== bool(false) 131int(0) !== object(stdClass)#%d (0) {} 132int(0) !== object(stdClass)#%d (0) {} 133int(0) !== object(test)#%d (0) {} 134int(0) !== array(0) {} 135int(0) !== int(-9223372036854775808) 136int(0) !== string(20) "-9223372036854775808" 137string(6) "string" !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 138string(6) "string" !== string(0) "" 139string(6) "string" !== int(1) 140string(6) "string" !== float(2.5) 141string(6) "string" !== int(0) 142string(6) "string" === string(6) "string" 143string(6) "string" !== string(3) "123" 144string(6) "string" !== string(3) "2.5" 145string(6) "string" !== NULL 146string(6) "string" !== bool(true) 147string(6) "string" !== bool(false) 148string(6) "string" !== object(stdClass)#%d (0) {} 149string(6) "string" !== object(stdClass)#%d (0) {} 150string(6) "string" !== object(test)#%d (0) {} 151string(6) "string" !== array(0) {} 152string(6) "string" !== int(-9223372036854775808) 153string(6) "string" !== string(20) "-9223372036854775808" 154string(3) "123" !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 155string(3) "123" !== string(0) "" 156string(3) "123" !== int(1) 157string(3) "123" !== float(2.5) 158string(3) "123" !== int(0) 159string(3) "123" !== string(6) "string" 160string(3) "123" === string(3) "123" 161string(3) "123" !== string(3) "2.5" 162string(3) "123" !== NULL 163string(3) "123" !== bool(true) 164string(3) "123" !== bool(false) 165string(3) "123" !== object(stdClass)#%d (0) {} 166string(3) "123" !== object(stdClass)#%d (0) {} 167string(3) "123" !== object(test)#%d (0) {} 168string(3) "123" !== array(0) {} 169string(3) "123" !== int(-9223372036854775808) 170string(3) "123" !== string(20) "-9223372036854775808" 171string(3) "2.5" !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 172string(3) "2.5" !== string(0) "" 173string(3) "2.5" !== int(1) 174string(3) "2.5" !== float(2.5) 175string(3) "2.5" !== int(0) 176string(3) "2.5" !== string(6) "string" 177string(3) "2.5" !== string(3) "123" 178string(3) "2.5" === string(3) "2.5" 179string(3) "2.5" !== NULL 180string(3) "2.5" !== bool(true) 181string(3) "2.5" !== bool(false) 182string(3) "2.5" !== object(stdClass)#%d (0) {} 183string(3) "2.5" !== object(stdClass)#%d (0) {} 184string(3) "2.5" !== object(test)#%d (0) {} 185string(3) "2.5" !== array(0) {} 186string(3) "2.5" !== int(-9223372036854775808) 187string(3) "2.5" !== string(20) "-9223372036854775808" 188NULL !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 189NULL !== string(0) "" 190NULL !== int(1) 191NULL !== float(2.5) 192NULL !== int(0) 193NULL !== string(6) "string" 194NULL !== string(3) "123" 195NULL !== string(3) "2.5" 196NULL === NULL 197NULL !== bool(true) 198NULL !== bool(false) 199NULL !== object(stdClass)#%d (0) {} 200NULL !== object(stdClass)#%d (0) {} 201NULL !== object(test)#%d (0) {} 202NULL !== array(0) {} 203NULL !== int(-9223372036854775808) 204NULL !== string(20) "-9223372036854775808" 205bool(true) !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 206bool(true) !== string(0) "" 207bool(true) !== int(1) 208bool(true) !== float(2.5) 209bool(true) !== int(0) 210bool(true) !== string(6) "string" 211bool(true) !== string(3) "123" 212bool(true) !== string(3) "2.5" 213bool(true) !== NULL 214bool(true) === bool(true) 215bool(true) !== bool(false) 216bool(true) !== object(stdClass)#%d (0) {} 217bool(true) !== object(stdClass)#%d (0) {} 218bool(true) !== object(test)#%d (0) {} 219bool(true) !== array(0) {} 220bool(true) !== int(-9223372036854775808) 221bool(true) !== string(20) "-9223372036854775808" 222bool(false) !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 223bool(false) !== string(0) "" 224bool(false) !== int(1) 225bool(false) !== float(2.5) 226bool(false) !== int(0) 227bool(false) !== string(6) "string" 228bool(false) !== string(3) "123" 229bool(false) !== string(3) "2.5" 230bool(false) !== NULL 231bool(false) !== bool(true) 232bool(false) === bool(false) 233bool(false) !== object(stdClass)#%d (0) {} 234bool(false) !== object(stdClass)#%d (0) {} 235bool(false) !== object(test)#%d (0) {} 236bool(false) !== array(0) {} 237bool(false) !== int(-9223372036854775808) 238bool(false) !== string(20) "-9223372036854775808" 239object(stdClass)#%d (0) {} !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 240object(stdClass)#%d (0) {} !== string(0) "" 241object(stdClass)#%d (0) {} !== int(1) 242object(stdClass)#%d (0) {} !== float(2.5) 243object(stdClass)#%d (0) {} !== int(0) 244object(stdClass)#%d (0) {} !== string(6) "string" 245object(stdClass)#%d (0) {} !== string(3) "123" 246object(stdClass)#%d (0) {} !== string(3) "2.5" 247object(stdClass)#%d (0) {} !== NULL 248object(stdClass)#%d (0) {} !== bool(true) 249object(stdClass)#%d (0) {} !== bool(false) 250object(stdClass)#%d (0) {} === object(stdClass)#%d (0) {} 251object(stdClass)#%d (0) {} !== object(stdClass)#%d (0) {} 252object(stdClass)#%d (0) {} !== object(test)#%d (0) {} 253object(stdClass)#%d (0) {} !== array(0) {} 254object(stdClass)#%d (0) {} !== int(-9223372036854775808) 255object(stdClass)#%d (0) {} !== string(20) "-9223372036854775808" 256object(stdClass)#%d (0) {} !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 257object(stdClass)#%d (0) {} !== string(0) "" 258object(stdClass)#%d (0) {} !== int(1) 259object(stdClass)#%d (0) {} !== float(2.5) 260object(stdClass)#%d (0) {} !== int(0) 261object(stdClass)#%d (0) {} !== string(6) "string" 262object(stdClass)#%d (0) {} !== string(3) "123" 263object(stdClass)#%d (0) {} !== string(3) "2.5" 264object(stdClass)#%d (0) {} !== NULL 265object(stdClass)#%d (0) {} !== bool(true) 266object(stdClass)#%d (0) {} !== bool(false) 267object(stdClass)#%d (0) {} !== object(stdClass)#%d (0) {} 268object(stdClass)#%d (0) {} === object(stdClass)#%d (0) {} 269object(stdClass)#%d (0) {} !== object(test)#%d (0) {} 270object(stdClass)#%d (0) {} !== array(0) {} 271object(stdClass)#%d (0) {} !== int(-9223372036854775808) 272object(stdClass)#%d (0) {} !== string(20) "-9223372036854775808" 273object(test)#%d (0) {} !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 274object(test)#%d (0) {} !== string(0) "" 275object(test)#%d (0) {} !== int(1) 276object(test)#%d (0) {} !== float(2.5) 277object(test)#%d (0) {} !== int(0) 278object(test)#%d (0) {} !== string(6) "string" 279object(test)#%d (0) {} !== string(3) "123" 280object(test)#%d (0) {} !== string(3) "2.5" 281object(test)#%d (0) {} !== NULL 282object(test)#%d (0) {} !== bool(true) 283object(test)#%d (0) {} !== bool(false) 284object(test)#%d (0) {} !== object(stdClass)#%d (0) {} 285object(test)#%d (0) {} !== object(stdClass)#%d (0) {} 286object(test)#%d (0) {} === object(test)#%d (0) {} 287object(test)#%d (0) {} !== array(0) {} 288object(test)#%d (0) {} !== int(-9223372036854775808) 289object(test)#%d (0) {} !== string(20) "-9223372036854775808" 290array(0) {} !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 291array(0) {} !== string(0) "" 292array(0) {} !== int(1) 293array(0) {} !== float(2.5) 294array(0) {} !== int(0) 295array(0) {} !== string(6) "string" 296array(0) {} !== string(3) "123" 297array(0) {} !== string(3) "2.5" 298array(0) {} !== NULL 299array(0) {} !== bool(true) 300array(0) {} !== bool(false) 301array(0) {} !== object(stdClass)#%d (0) {} 302array(0) {} !== object(stdClass)#%d (0) {} 303array(0) {} !== object(test)#%d (0) {} 304array(0) {} === array(0) {} 305array(0) {} !== int(-9223372036854775808) 306array(0) {} !== string(20) "-9223372036854775808" 307int(-9223372036854775808) !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 308int(-9223372036854775808) !== string(0) "" 309int(-9223372036854775808) !== int(1) 310int(-9223372036854775808) !== float(2.5) 311int(-9223372036854775808) !== int(0) 312int(-9223372036854775808) !== string(6) "string" 313int(-9223372036854775808) !== string(3) "123" 314int(-9223372036854775808) !== string(3) "2.5" 315int(-9223372036854775808) !== NULL 316int(-9223372036854775808) !== bool(true) 317int(-9223372036854775808) !== bool(false) 318int(-9223372036854775808) !== object(stdClass)#%d (0) {} 319int(-9223372036854775808) !== object(stdClass)#%d (0) {} 320int(-9223372036854775808) !== object(test)#%d (0) {} 321int(-9223372036854775808) !== array(0) {} 322int(-9223372036854775808) === int(-9223372036854775808) 323int(-9223372036854775808) !== string(20) "-9223372036854775808" 324string(20) "-9223372036854775808" !== array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3)} 325string(20) "-9223372036854775808" !== string(0) "" 326string(20) "-9223372036854775808" !== int(1) 327string(20) "-9223372036854775808" !== float(2.5) 328string(20) "-9223372036854775808" !== int(0) 329string(20) "-9223372036854775808" !== string(6) "string" 330string(20) "-9223372036854775808" !== string(3) "123" 331string(20) "-9223372036854775808" !== string(3) "2.5" 332string(20) "-9223372036854775808" !== NULL 333string(20) "-9223372036854775808" !== bool(true) 334string(20) "-9223372036854775808" !== bool(false) 335string(20) "-9223372036854775808" !== object(stdClass)#%d (0) {} 336string(20) "-9223372036854775808" !== object(stdClass)#%d (0) {} 337string(20) "-9223372036854775808" !== object(test)#%d (0) {} 338string(20) "-9223372036854775808" !== array(0) {} 339string(20) "-9223372036854775808" !== int(-9223372036854775808) 340string(20) "-9223372036854775808" === string(20) "-9223372036854775808" 341Done 342
