1--TEST-- 2Test each() function 3--FILE-- 4<?php 5/* Return the current key and value pair from an array 6 and advance the array cursor */ 7 8echo "*** Testing each() : basic functionality ***\n"; 9$arrays = array ( 10 array(0), 11 array(1), 12 array(-1), 13 array(1, 2, 3, 4, 5), 14 array(-1, -2, -3, 6, 7, 8), 15 array("a", "ab", "abc", "abcd"), 16 array("1" => "one", "2" => "two", "3" => "three", "4" => "four"), 17 array("one" => 1, "two" => 2, 3 => "three", 4 => 4, "" => 5, 18 " " => 6, "\x00" => "\x000", "\0" => "\0", "" => "", 19 TRUE => TRUE, FALSE => FALSE, NULL => NULL 20 ), 21 array("1.5" => "one.5", "-2.0" => "negative2.0"), 22 array(-5 => "negative5", -.05 => "negative.05") 23 ); 24 25/* loop through to check working of each() on different arrays */ 26$i = 0; 27while( list( $key, $sub_array) = each($arrays) ) { 28 echo "-- Iteration $i --\n"; 29 $c = count ($sub_array); 30 $c++; // increment by one to create the situation 31 // of accessing beyond array size 32 while ( $c ) { 33 var_dump( each($sub_array) ); 34 $c --; 35 } 36 /* assignment of an array to another variable resets the internal 37 pointer of the array. check this and ensure that each returns 38 the first element after the assignment */ 39 $new_array = $sub_array; 40 var_dump( each($sub_array) ); 41 echo "\n"; 42 $i++; 43} 44 45echo "\n*** Testing each() : possible variations ***\n"; 46echo "-- Testing each() with reset() function --\n"; 47/* reset the $arrays and use each to get the first element */ 48var_dump( reset($arrays) ); 49var_dump( each($arrays) ); // first element 50list($key, $sub_array) = each($arrays); // now second element 51var_dump( each($sub_array) ); 52 53 54echo "-- Testing each() with resources --\n"; 55$fp = fopen(__FILE__, "r"); 56$dfp = opendir("."); 57 58$resources = array ( 59 "file" => $fp, 60 "dir" => $dfp 61); 62 63for( $i = 0; $i < count($resources); $i++) { 64 var_dump( each($resources) ); 65} 66 67echo "-- Testing each with objects --\n"; 68 69class each_class { 70 private $var_private = 100; 71 protected $var_protected = "string"; 72 public $var_public = array(0, 1, TRUE, NULL); 73} 74$each_obj = new each_class(); 75for( $i = 0; $i <= 2; $i++ ) { 76 var_dump( each($each_obj) ); 77} 78 79echo "-- Testing each() with null array --\n"; 80$null_array = array(); 81var_dump( each($null_array) ); 82 83 84echo "\n*** Testing error conditions ***\n"; 85 86/* unexpected number of arguments */ 87var_dump( each() ); // args = 0 88var_dump( each($null_array, $null_array) ); // args > expected 89 90/* unexpected argument type */ 91$var=1; 92$str ="string"; 93$fl = "15.5"; 94var_dump( each($var) ); 95var_dump( each($str) ); 96var_dump( each($fl) ); 97 98// close resourses used 99fclose($fp); 100closedir($dfp); 101 102echo "Done\n"; 103?> 104--EXPECTF-- 105*** Testing each() : basic functionality *** 106-- Iteration 0 -- 107array(4) { 108 [1]=> 109 int(0) 110 ["value"]=> 111 int(0) 112 [0]=> 113 int(0) 114 ["key"]=> 115 int(0) 116} 117bool(false) 118array(4) { 119 [1]=> 120 int(0) 121 ["value"]=> 122 int(0) 123 [0]=> 124 int(0) 125 ["key"]=> 126 int(0) 127} 128 129-- Iteration 1 -- 130array(4) { 131 [1]=> 132 int(1) 133 ["value"]=> 134 int(1) 135 [0]=> 136 int(0) 137 ["key"]=> 138 int(0) 139} 140bool(false) 141array(4) { 142 [1]=> 143 int(1) 144 ["value"]=> 145 int(1) 146 [0]=> 147 int(0) 148 ["key"]=> 149 int(0) 150} 151 152-- Iteration 2 -- 153array(4) { 154 [1]=> 155 int(-1) 156 ["value"]=> 157 int(-1) 158 [0]=> 159 int(0) 160 ["key"]=> 161 int(0) 162} 163bool(false) 164array(4) { 165 [1]=> 166 int(-1) 167 ["value"]=> 168 int(-1) 169 [0]=> 170 int(0) 171 ["key"]=> 172 int(0) 173} 174 175-- Iteration 3 -- 176array(4) { 177 [1]=> 178 int(1) 179 ["value"]=> 180 int(1) 181 [0]=> 182 int(0) 183 ["key"]=> 184 int(0) 185} 186array(4) { 187 [1]=> 188 int(2) 189 ["value"]=> 190 int(2) 191 [0]=> 192 int(1) 193 ["key"]=> 194 int(1) 195} 196array(4) { 197 [1]=> 198 int(3) 199 ["value"]=> 200 int(3) 201 [0]=> 202 int(2) 203 ["key"]=> 204 int(2) 205} 206array(4) { 207 [1]=> 208 int(4) 209 ["value"]=> 210 int(4) 211 [0]=> 212 int(3) 213 ["key"]=> 214 int(3) 215} 216array(4) { 217 [1]=> 218 int(5) 219 ["value"]=> 220 int(5) 221 [0]=> 222 int(4) 223 ["key"]=> 224 int(4) 225} 226bool(false) 227array(4) { 228 [1]=> 229 int(1) 230 ["value"]=> 231 int(1) 232 [0]=> 233 int(0) 234 ["key"]=> 235 int(0) 236} 237 238-- Iteration 4 -- 239array(4) { 240 [1]=> 241 int(-1) 242 ["value"]=> 243 int(-1) 244 [0]=> 245 int(0) 246 ["key"]=> 247 int(0) 248} 249array(4) { 250 [1]=> 251 int(-2) 252 ["value"]=> 253 int(-2) 254 [0]=> 255 int(1) 256 ["key"]=> 257 int(1) 258} 259array(4) { 260 [1]=> 261 int(-3) 262 ["value"]=> 263 int(-3) 264 [0]=> 265 int(2) 266 ["key"]=> 267 int(2) 268} 269array(4) { 270 [1]=> 271 int(6) 272 ["value"]=> 273 int(6) 274 [0]=> 275 int(3) 276 ["key"]=> 277 int(3) 278} 279array(4) { 280 [1]=> 281 int(7) 282 ["value"]=> 283 int(7) 284 [0]=> 285 int(4) 286 ["key"]=> 287 int(4) 288} 289array(4) { 290 [1]=> 291 int(8) 292 ["value"]=> 293 int(8) 294 [0]=> 295 int(5) 296 ["key"]=> 297 int(5) 298} 299bool(false) 300array(4) { 301 [1]=> 302 int(-1) 303 ["value"]=> 304 int(-1) 305 [0]=> 306 int(0) 307 ["key"]=> 308 int(0) 309} 310 311-- Iteration 5 -- 312array(4) { 313 [1]=> 314 string(1) "a" 315 ["value"]=> 316 string(1) "a" 317 [0]=> 318 int(0) 319 ["key"]=> 320 int(0) 321} 322array(4) { 323 [1]=> 324 string(2) "ab" 325 ["value"]=> 326 string(2) "ab" 327 [0]=> 328 int(1) 329 ["key"]=> 330 int(1) 331} 332array(4) { 333 [1]=> 334 string(3) "abc" 335 ["value"]=> 336 string(3) "abc" 337 [0]=> 338 int(2) 339 ["key"]=> 340 int(2) 341} 342array(4) { 343 [1]=> 344 string(4) "abcd" 345 ["value"]=> 346 string(4) "abcd" 347 [0]=> 348 int(3) 349 ["key"]=> 350 int(3) 351} 352bool(false) 353array(4) { 354 [1]=> 355 string(1) "a" 356 ["value"]=> 357 string(1) "a" 358 [0]=> 359 int(0) 360 ["key"]=> 361 int(0) 362} 363 364-- Iteration 6 -- 365array(4) { 366 [1]=> 367 string(3) "one" 368 ["value"]=> 369 string(3) "one" 370 [0]=> 371 int(1) 372 ["key"]=> 373 int(1) 374} 375array(4) { 376 [1]=> 377 string(3) "two" 378 ["value"]=> 379 string(3) "two" 380 [0]=> 381 int(2) 382 ["key"]=> 383 int(2) 384} 385array(4) { 386 [1]=> 387 string(5) "three" 388 ["value"]=> 389 string(5) "three" 390 [0]=> 391 int(3) 392 ["key"]=> 393 int(3) 394} 395array(4) { 396 [1]=> 397 string(4) "four" 398 ["value"]=> 399 string(4) "four" 400 [0]=> 401 int(4) 402 ["key"]=> 403 int(4) 404} 405bool(false) 406array(4) { 407 [1]=> 408 string(3) "one" 409 ["value"]=> 410 string(3) "one" 411 [0]=> 412 int(1) 413 ["key"]=> 414 int(1) 415} 416 417-- Iteration 7 -- 418array(4) { 419 [1]=> 420 int(1) 421 ["value"]=> 422 int(1) 423 [0]=> 424 string(3) "one" 425 ["key"]=> 426 string(3) "one" 427} 428array(4) { 429 [1]=> 430 int(2) 431 ["value"]=> 432 int(2) 433 [0]=> 434 string(3) "two" 435 ["key"]=> 436 string(3) "two" 437} 438array(4) { 439 [1]=> 440 string(5) "three" 441 ["value"]=> 442 string(5) "three" 443 [0]=> 444 int(3) 445 ["key"]=> 446 int(3) 447} 448array(4) { 449 [1]=> 450 int(4) 451 ["value"]=> 452 int(4) 453 [0]=> 454 int(4) 455 ["key"]=> 456 int(4) 457} 458array(4) { 459 [1]=> 460 NULL 461 ["value"]=> 462 NULL 463 [0]=> 464 string(0) "" 465 ["key"]=> 466 string(0) "" 467} 468array(4) { 469 [1]=> 470 int(6) 471 ["value"]=> 472 int(6) 473 [0]=> 474 string(2) " " 475 ["key"]=> 476 string(2) " " 477} 478array(4) { 479 [1]=> 480 string(1) "�" 481 ["value"]=> 482 string(1) "�" 483 [0]=> 484 string(1) "�" 485 ["key"]=> 486 string(1) "�" 487} 488array(4) { 489 [1]=> 490 bool(true) 491 ["value"]=> 492 bool(true) 493 [0]=> 494 int(1) 495 ["key"]=> 496 int(1) 497} 498array(4) { 499 [1]=> 500 bool(false) 501 ["value"]=> 502 bool(false) 503 [0]=> 504 int(0) 505 ["key"]=> 506 int(0) 507} 508bool(false) 509array(4) { 510 [1]=> 511 int(1) 512 ["value"]=> 513 int(1) 514 [0]=> 515 string(3) "one" 516 ["key"]=> 517 string(3) "one" 518} 519 520-- Iteration 8 -- 521array(4) { 522 [1]=> 523 string(5) "one.5" 524 ["value"]=> 525 string(5) "one.5" 526 [0]=> 527 string(3) "1.5" 528 ["key"]=> 529 string(3) "1.5" 530} 531array(4) { 532 [1]=> 533 string(11) "negative2.0" 534 ["value"]=> 535 string(11) "negative2.0" 536 [0]=> 537 string(4) "-2.0" 538 ["key"]=> 539 string(4) "-2.0" 540} 541bool(false) 542array(4) { 543 [1]=> 544 string(5) "one.5" 545 ["value"]=> 546 string(5) "one.5" 547 [0]=> 548 string(3) "1.5" 549 ["key"]=> 550 string(3) "1.5" 551} 552 553-- Iteration 9 -- 554array(4) { 555 [1]=> 556 string(9) "negative5" 557 ["value"]=> 558 string(9) "negative5" 559 [0]=> 560 int(-5) 561 ["key"]=> 562 int(-5) 563} 564array(4) { 565 [1]=> 566 string(11) "negative.05" 567 ["value"]=> 568 string(11) "negative.05" 569 [0]=> 570 int(0) 571 ["key"]=> 572 int(0) 573} 574bool(false) 575array(4) { 576 [1]=> 577 string(9) "negative5" 578 ["value"]=> 579 string(9) "negative5" 580 [0]=> 581 int(-5) 582 ["key"]=> 583 int(-5) 584} 585 586 587*** Testing each() : possible variations *** 588-- Testing each() with reset() function -- 589array(1) { 590 [0]=> 591 int(0) 592} 593array(4) { 594 [1]=> 595 array(1) { 596 [0]=> 597 int(0) 598 } 599 ["value"]=> 600 array(1) { 601 [0]=> 602 int(0) 603 } 604 [0]=> 605 int(0) 606 ["key"]=> 607 int(0) 608} 609array(4) { 610 [1]=> 611 int(1) 612 ["value"]=> 613 int(1) 614 [0]=> 615 int(0) 616 ["key"]=> 617 int(0) 618} 619-- Testing each() with resources -- 620array(4) { 621 [1]=> 622 resource(%d) of type (stream) 623 ["value"]=> 624 resource(%d) of type (stream) 625 [0]=> 626 string(4) "file" 627 ["key"]=> 628 string(4) "file" 629} 630array(4) { 631 [1]=> 632 resource(%d) of type (stream) 633 ["value"]=> 634 resource(%d) of type (stream) 635 [0]=> 636 string(3) "dir" 637 ["key"]=> 638 string(3) "dir" 639} 640-- Testing each with objects -- 641array(4) { 642 [1]=> 643 int(100) 644 ["value"]=> 645 int(100) 646 [0]=> 647 string(23) "�each_class�var_private" 648 ["key"]=> 649 string(23) "�each_class�var_private" 650} 651array(4) { 652 [1]=> 653 string(6) "string" 654 ["value"]=> 655 string(6) "string" 656 [0]=> 657 string(16) "�*�var_protected" 658 ["key"]=> 659 string(16) "�*�var_protected" 660} 661array(4) { 662 [1]=> 663 array(4) { 664 [0]=> 665 int(0) 666 [1]=> 667 int(1) 668 [2]=> 669 bool(true) 670 [3]=> 671 NULL 672 } 673 ["value"]=> 674 array(4) { 675 [0]=> 676 int(0) 677 [1]=> 678 int(1) 679 [2]=> 680 bool(true) 681 [3]=> 682 NULL 683 } 684 [0]=> 685 string(10) "var_public" 686 ["key"]=> 687 string(10) "var_public" 688} 689-- Testing each() with null array -- 690bool(false) 691 692*** Testing error conditions *** 693 694Warning: each() expects exactly 1 parameter, 0 given in %s on line %d 695NULL 696 697Warning: each() expects exactly 1 parameter, 2 given in %s on line %d 698NULL 699 700Warning: Variable passed to each() is not an array or object in %s on line %d 701NULL 702 703Warning: Variable passed to each() is not an array or object in %s on line %d 704NULL 705 706Warning: Variable passed to each() is not an array or object in %s on line %d 707NULL 708Done 709
