Annotation of embedaddon/php/ext/standard/tests/array/009.phpt, revision 1.1
1.1 ! misho 1: --TEST--
! 2: Test key(), current(), next() & reset() functions
! 3: --FILE--
! 4: <?php
! 5: /* Prototype & Usage:
! 6: mixed key ( array &$array ) -> returns the index element of the current array position
! 7: mixed current ( array &$array ) -> returns the current element in the array
! 8: mixed next ( array &$array ) -> similar to current() but advances the internal pointer to next element
! 9: mixed reset ( array &$array ) -> Reset the internal pointer to first element
! 10: */
! 11:
! 12: $basic_arrays = array (
! 13: array(0), // array with element as 0
! 14: array(1), // array with single element
! 15: array(1,2, 3, -1, -2, -3), // array of integers
! 16: array(1.1, 2.2, 3.3, -1.1, -2.2, -3.3), // array of floats
! 17: array('a', 'b', 'c', "ab", "ac", "ad"), // string array
! 18: array("a" => "apple", "b" => "book", "c" => "cook"), // associative array
! 19: array('d' => 'drink', 'p' => 'port', 's' => 'set'), // another associative array
! 20: array(1 => 'One', 2 => 'two', 3 => "three") // associative array with key as integers
! 21: );
! 22:
! 23: $varient_arrays = array (
! 24: array(), // empty array
! 25: array(""), // array with null string
! 26: array(NULL),// array with NULL
! 27: array(null),// array with null
! 28: array(NULL, true, null, "", 1), // mixed array
! 29: array(-1.5 => "test", -2 => "rest", 2.5 => "two",
! 30: "" => "string", 0 => "zero", "" => "" ) // mixed array
! 31: );
! 32:
! 33: echo "*** Testing basic operations ***\n";
! 34: $loop_count = 1;
! 35: foreach ($basic_arrays as $sub_array ) {
! 36: echo "-- Iteration $loop_count --\n";
! 37: $loop_count++;
! 38: $c = count ($sub_array);
! 39: $c++; // increment by one to create the situation of accessing beyond array size
! 40: while ( $c ) {
! 41: var_dump( current($sub_array)); // current element
! 42: var_dump( key($sub_array) ); // key of the current element
! 43: var_dump( next($sub_array) ); // move to next element
! 44: $c --;
! 45: }
! 46: var_dump( reset($sub_array) ); // reset the internal pointer to first element
! 47: var_dump( key($sub_array) ); // access the array after reset
! 48: var_dump( $sub_array ); // dump the array to see that its intact
! 49:
! 50: echo "\n";
! 51: }
! 52:
! 53: echo "\n*** Testing possible variations ***\n";
! 54: $loop_count = 1;
! 55: foreach ($varient_arrays as $sub_array ) {
! 56: echo "-- Iteration $loop_count --\n";
! 57: $loop_count++;
! 58: $c = count ($sub_array);
! 59: $c++; // increment by one to create the situation of accessing beyond array size
! 60: while ( $c ) {
! 61: var_dump( current($sub_array)); // current element
! 62: var_dump( key($sub_array) ); // key of the current element
! 63: var_dump( next($sub_array) ); // move to next element
! 64: $c --;
! 65: }
! 66: var_dump( reset($sub_array) ); // reset the internal pointer to first element
! 67: var_dump( key($sub_array) ); // access the array after reset
! 68: var_dump( $sub_array ); // dump the array to see that its intact
! 69: echo "\n";
! 70: }
! 71:
! 72: /*test these functions on array which is already unset */
! 73: echo "\n-- Testing variation: when array is unset --\n";
! 74: $unset_array = array (1);
! 75: unset($unset_array);
! 76:
! 77: var_dump( current($unset_array) );
! 78: var_dump( key($unset_array) );
! 79: var_dump( next($unset_array) );
! 80: var_dump( reset($unset_array) );
! 81:
! 82:
! 83: echo "\n*** Testing error conditions ***\n";
! 84: //Zero argument, expected 1 argument
! 85: var_dump( key() );
! 86: var_dump( current() );
! 87: var_dump( reset() );
! 88: var_dump( next() );
! 89:
! 90: // args more than expected, expected 1 argument
! 91: $temp_array = array(1);
! 92: var_dump( key($temp_array, $temp_array) );
! 93: var_dump( current($temp_array, $temp_array) );
! 94: var_dump( reset($temp_array, $temp_array) );
! 95: var_dump( next($temp_array, $temp_array) );
! 96:
! 97: // invalid args type, valid arguement: array
! 98: $int_var = 1;
! 99: $float_var = 1.5;
! 100: $string = "string";
! 101: var_dump( key($int_var) );
! 102: var_dump( key($float_var) );
! 103: var_dump( key($string) );
! 104:
! 105: var_dump( current($int_var) );
! 106: var_dump( current($float_var) );
! 107: var_dump( current($string) );
! 108:
! 109: var_dump( next($int_var) );
! 110: var_dump( next($float_var) );
! 111: var_dump( next($string) );
! 112:
! 113: var_dump( reset($int_var) );
! 114: var_dump( reset($float_var) );
! 115: var_dump( reset($string) );
! 116:
! 117: echo "Done\n";
! 118: ?>
! 119: --EXPECTF--
! 120: *** Testing basic operations ***
! 121: -- Iteration 1 --
! 122: int(0)
! 123: int(0)
! 124: bool(false)
! 125: bool(false)
! 126: NULL
! 127: bool(false)
! 128: int(0)
! 129: int(0)
! 130: array(1) {
! 131: [0]=>
! 132: int(0)
! 133: }
! 134:
! 135: -- Iteration 2 --
! 136: int(1)
! 137: int(0)
! 138: bool(false)
! 139: bool(false)
! 140: NULL
! 141: bool(false)
! 142: int(1)
! 143: int(0)
! 144: array(1) {
! 145: [0]=>
! 146: int(1)
! 147: }
! 148:
! 149: -- Iteration 3 --
! 150: int(1)
! 151: int(0)
! 152: int(2)
! 153: int(2)
! 154: int(1)
! 155: int(3)
! 156: int(3)
! 157: int(2)
! 158: int(-1)
! 159: int(-1)
! 160: int(3)
! 161: int(-2)
! 162: int(-2)
! 163: int(4)
! 164: int(-3)
! 165: int(-3)
! 166: int(5)
! 167: bool(false)
! 168: bool(false)
! 169: NULL
! 170: bool(false)
! 171: int(1)
! 172: int(0)
! 173: array(6) {
! 174: [0]=>
! 175: int(1)
! 176: [1]=>
! 177: int(2)
! 178: [2]=>
! 179: int(3)
! 180: [3]=>
! 181: int(-1)
! 182: [4]=>
! 183: int(-2)
! 184: [5]=>
! 185: int(-3)
! 186: }
! 187:
! 188: -- Iteration 4 --
! 189: float(1.1)
! 190: int(0)
! 191: float(2.2)
! 192: float(2.2)
! 193: int(1)
! 194: float(3.3)
! 195: float(3.3)
! 196: int(2)
! 197: float(-1.1)
! 198: float(-1.1)
! 199: int(3)
! 200: float(-2.2)
! 201: float(-2.2)
! 202: int(4)
! 203: float(-3.3)
! 204: float(-3.3)
! 205: int(5)
! 206: bool(false)
! 207: bool(false)
! 208: NULL
! 209: bool(false)
! 210: float(1.1)
! 211: int(0)
! 212: array(6) {
! 213: [0]=>
! 214: float(1.1)
! 215: [1]=>
! 216: float(2.2)
! 217: [2]=>
! 218: float(3.3)
! 219: [3]=>
! 220: float(-1.1)
! 221: [4]=>
! 222: float(-2.2)
! 223: [5]=>
! 224: float(-3.3)
! 225: }
! 226:
! 227: -- Iteration 5 --
! 228: string(1) "a"
! 229: int(0)
! 230: string(1) "b"
! 231: string(1) "b"
! 232: int(1)
! 233: string(1) "c"
! 234: string(1) "c"
! 235: int(2)
! 236: string(2) "ab"
! 237: string(2) "ab"
! 238: int(3)
! 239: string(2) "ac"
! 240: string(2) "ac"
! 241: int(4)
! 242: string(2) "ad"
! 243: string(2) "ad"
! 244: int(5)
! 245: bool(false)
! 246: bool(false)
! 247: NULL
! 248: bool(false)
! 249: string(1) "a"
! 250: int(0)
! 251: array(6) {
! 252: [0]=>
! 253: string(1) "a"
! 254: [1]=>
! 255: string(1) "b"
! 256: [2]=>
! 257: string(1) "c"
! 258: [3]=>
! 259: string(2) "ab"
! 260: [4]=>
! 261: string(2) "ac"
! 262: [5]=>
! 263: string(2) "ad"
! 264: }
! 265:
! 266: -- Iteration 6 --
! 267: string(5) "apple"
! 268: string(1) "a"
! 269: string(4) "book"
! 270: string(4) "book"
! 271: string(1) "b"
! 272: string(4) "cook"
! 273: string(4) "cook"
! 274: string(1) "c"
! 275: bool(false)
! 276: bool(false)
! 277: NULL
! 278: bool(false)
! 279: string(5) "apple"
! 280: string(1) "a"
! 281: array(3) {
! 282: ["a"]=>
! 283: string(5) "apple"
! 284: ["b"]=>
! 285: string(4) "book"
! 286: ["c"]=>
! 287: string(4) "cook"
! 288: }
! 289:
! 290: -- Iteration 7 --
! 291: string(5) "drink"
! 292: string(1) "d"
! 293: string(4) "port"
! 294: string(4) "port"
! 295: string(1) "p"
! 296: string(3) "set"
! 297: string(3) "set"
! 298: string(1) "s"
! 299: bool(false)
! 300: bool(false)
! 301: NULL
! 302: bool(false)
! 303: string(5) "drink"
! 304: string(1) "d"
! 305: array(3) {
! 306: ["d"]=>
! 307: string(5) "drink"
! 308: ["p"]=>
! 309: string(4) "port"
! 310: ["s"]=>
! 311: string(3) "set"
! 312: }
! 313:
! 314: -- Iteration 8 --
! 315: string(3) "One"
! 316: int(1)
! 317: string(3) "two"
! 318: string(3) "two"
! 319: int(2)
! 320: string(5) "three"
! 321: string(5) "three"
! 322: int(3)
! 323: bool(false)
! 324: bool(false)
! 325: NULL
! 326: bool(false)
! 327: string(3) "One"
! 328: int(1)
! 329: array(3) {
! 330: [1]=>
! 331: string(3) "One"
! 332: [2]=>
! 333: string(3) "two"
! 334: [3]=>
! 335: string(5) "three"
! 336: }
! 337:
! 338:
! 339: *** Testing possible variations ***
! 340: -- Iteration 1 --
! 341: bool(false)
! 342: NULL
! 343: bool(false)
! 344: bool(false)
! 345: NULL
! 346: array(0) {
! 347: }
! 348:
! 349: -- Iteration 2 --
! 350: string(0) ""
! 351: int(0)
! 352: bool(false)
! 353: bool(false)
! 354: NULL
! 355: bool(false)
! 356: string(0) ""
! 357: int(0)
! 358: array(1) {
! 359: [0]=>
! 360: string(0) ""
! 361: }
! 362:
! 363: -- Iteration 3 --
! 364: NULL
! 365: int(0)
! 366: bool(false)
! 367: bool(false)
! 368: NULL
! 369: bool(false)
! 370: NULL
! 371: int(0)
! 372: array(1) {
! 373: [0]=>
! 374: NULL
! 375: }
! 376:
! 377: -- Iteration 4 --
! 378: NULL
! 379: int(0)
! 380: bool(false)
! 381: bool(false)
! 382: NULL
! 383: bool(false)
! 384: NULL
! 385: int(0)
! 386: array(1) {
! 387: [0]=>
! 388: NULL
! 389: }
! 390:
! 391: -- Iteration 5 --
! 392: NULL
! 393: int(0)
! 394: bool(true)
! 395: bool(true)
! 396: int(1)
! 397: NULL
! 398: NULL
! 399: int(2)
! 400: string(0) ""
! 401: string(0) ""
! 402: int(3)
! 403: int(1)
! 404: int(1)
! 405: int(4)
! 406: bool(false)
! 407: bool(false)
! 408: NULL
! 409: bool(false)
! 410: NULL
! 411: int(0)
! 412: array(5) {
! 413: [0]=>
! 414: NULL
! 415: [1]=>
! 416: bool(true)
! 417: [2]=>
! 418: NULL
! 419: [3]=>
! 420: string(0) ""
! 421: [4]=>
! 422: int(1)
! 423: }
! 424:
! 425: -- Iteration 6 --
! 426: string(4) "test"
! 427: int(-1)
! 428: string(4) "rest"
! 429: string(4) "rest"
! 430: int(-2)
! 431: string(3) "two"
! 432: string(3) "two"
! 433: int(2)
! 434: string(0) ""
! 435: string(0) ""
! 436: string(0) ""
! 437: string(4) "zero"
! 438: string(4) "zero"
! 439: int(0)
! 440: bool(false)
! 441: bool(false)
! 442: NULL
! 443: bool(false)
! 444: string(4) "test"
! 445: int(-1)
! 446: array(5) {
! 447: [-1]=>
! 448: string(4) "test"
! 449: [-2]=>
! 450: string(4) "rest"
! 451: [2]=>
! 452: string(3) "two"
! 453: [""]=>
! 454: string(0) ""
! 455: [0]=>
! 456: string(4) "zero"
! 457: }
! 458:
! 459:
! 460: -- Testing variation: when array is unset --
! 461:
! 462: Warning: current() expects parameter 1 to be array, null given in %s on line %d
! 463: NULL
! 464:
! 465: Warning: key() expects parameter 1 to be array, null given in %s on line %d
! 466: NULL
! 467:
! 468: Warning: next() expects parameter 1 to be array, null given in %s on line %d
! 469: NULL
! 470:
! 471: Warning: reset() expects parameter 1 to be array, null given in %s on line %d
! 472: NULL
! 473:
! 474: *** Testing error conditions ***
! 475:
! 476: Warning: key() expects exactly 1 parameter, 0 given in %s on line %d
! 477: NULL
! 478:
! 479: Warning: current() expects exactly 1 parameter, 0 given in %s on line %d
! 480: NULL
! 481:
! 482: Warning: reset() expects exactly 1 parameter, 0 given in %s on line %d
! 483: NULL
! 484:
! 485: Warning: next() expects exactly 1 parameter, 0 given in %s on line %d
! 486: NULL
! 487:
! 488: Warning: key() expects exactly 1 parameter, 2 given in %s on line %d
! 489: NULL
! 490:
! 491: Warning: current() expects exactly 1 parameter, 2 given in %s on line %d
! 492: NULL
! 493:
! 494: Warning: reset() expects exactly 1 parameter, 2 given in %s on line %d
! 495: NULL
! 496:
! 497: Warning: next() expects exactly 1 parameter, 2 given in %s on line %d
! 498: NULL
! 499:
! 500: Warning: key() expects parameter 1 to be array, integer given in %s on line %d
! 501: NULL
! 502:
! 503: Warning: key() expects parameter 1 to be array, double given in %s on line %d
! 504: NULL
! 505:
! 506: Warning: key() expects parameter 1 to be array, string given in %s on line %d
! 507: NULL
! 508:
! 509: Warning: current() expects parameter 1 to be array, integer given in %s on line %d
! 510: NULL
! 511:
! 512: Warning: current() expects parameter 1 to be array, double given in %s on line %d
! 513: NULL
! 514:
! 515: Warning: current() expects parameter 1 to be array, string given in %s on line %d
! 516: NULL
! 517:
! 518: Warning: next() expects parameter 1 to be array, integer given in %s on line %d
! 519: NULL
! 520:
! 521: Warning: next() expects parameter 1 to be array, double given in %s on line %d
! 522: NULL
! 523:
! 524: Warning: next() expects parameter 1 to be array, string given in %s on line %d
! 525: NULL
! 526:
! 527: Warning: reset() expects parameter 1 to be array, integer given in %s on line %d
! 528: NULL
! 529:
! 530: Warning: reset() expects parameter 1 to be array, double given in %s on line %d
! 531: NULL
! 532:
! 533: Warning: reset() expects parameter 1 to be array, string given in %s on line %d
! 534: NULL
! 535: Done
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