diff options
Diffstat (limited to 'tests/lang/foreachLoop.015.phpt')
| -rw-r--r-- | tests/lang/foreachLoop.015.phpt | 557 |
1 files changed, 557 insertions, 0 deletions
diff --git a/tests/lang/foreachLoop.015.phpt b/tests/lang/foreachLoop.015.phpt new file mode 100644 index 000000000..dfba15915 --- /dev/null +++ b/tests/lang/foreachLoop.015.phpt @@ -0,0 +1,557 @@ +--TEST--
+Directly modifying a REFERENCED array when foreach'ing over it while using &$value syntax.
+--FILE--
+<?php
+
+define('MAX_LOOPS',5);
+
+function withRefValue($elements, $transform) {
+ echo "\n---( Array with $elements element(s): )---\n";
+ //Build array:
+ for ($i=0; $i<$elements; $i++) {
+ $a[] = "v.$i";
+ }
+ $counter=0;
+
+ $ref = &$a;
+
+ echo "--> State of referenced array before loop:\n";
+ var_dump($a);
+
+ echo "--> Do loop:\n";
+ foreach ($a as $k=>&$v) {
+ echo " iteration $counter: \$k=$k; \$v=$v\n";
+ eval($transform);
+ $counter++;
+ if ($counter>MAX_LOOPS) {
+ echo " ** Stuck in a loop! **\n";
+ break;
+ }
+ }
+
+ echo "--> State of array after loop:\n";
+ var_dump($a);
+}
+
+
+echo "\nPopping elements off end of a referenced array, using &\$value";
+$transform = 'array_pop($a);';
+withRefValue(1, $transform);
+withRefValue(2, $transform);
+withRefValue(3, $transform);
+withRefValue(4, $transform);
+
+echo "\n\n\nShift elements off start of a referenced array, using &\$value";
+$transform = 'array_shift($a);';
+withRefValue(1, $transform);
+withRefValue(2, $transform);
+withRefValue(3, $transform);
+withRefValue(4, $transform);
+
+echo "\n\n\nRemove current element of a referenced array, using &\$value";
+$transform = 'unset($a[$k]);';
+withRefValue(1, $transform);
+withRefValue(2, $transform);
+withRefValue(3, $transform);
+withRefValue(4, $transform);
+
+echo "\n\n\nAdding elements to the end of a referenced array, using &\$value";
+$transform = 'array_push($a, "new.$counter");';
+withRefValue(1, $transform);
+withRefValue(2, $transform);
+withRefValue(3, $transform);
+withRefValue(4, $transform);
+
+echo "\n\n\nAdding elements to the start of a referenced array, using &\$value";
+$transform = 'array_unshift($a, "new.$counter");';
+withRefValue(1, $transform);
+withRefValue(2, $transform);
+withRefValue(3, $transform);
+withRefValue(4, $transform);
+
+?>
+--EXPECTF--
+
+Popping elements off end of a referenced array, using &$value
+---( Array with 1 element(s): )---
+--> State of referenced array before loop:
+array(1) {
+ [0]=>
+ string(3) "v.0"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 2 element(s): )---
+--> State of referenced array before loop:
+array(2) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=v.0
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 3 element(s): )---
+--> State of referenced array before loop:
+array(3) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+--> State of array after loop:
+array(1) {
+ [0]=>
+ string(3) "v.0"
+}
+
+---( Array with 4 element(s): )---
+--> State of referenced array before loop:
+array(4) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(3) "v.3"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+ iteration 2: $k=0; $v=v.0
+ iteration 3: $k=0; $v=v.0
+--> State of array after loop:
+array(0) {
+}
+
+
+
+Shift elements off start of a referenced array, using &$value
+---( Array with 1 element(s): )---
+--> State of referenced array before loop:
+array(1) {
+ [0]=>
+ string(3) "v.0"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 2 element(s): )---
+--> State of referenced array before loop:
+array(2) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=v.1
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 3 element(s): )---
+--> State of referenced array before loop:
+array(3) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=v.1
+ iteration 2: $k=0; $v=v.2
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 4 element(s): )---
+--> State of referenced array before loop:
+array(4) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(3) "v.3"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=v.1
+ iteration 2: $k=0; $v=v.2
+ iteration 3: $k=0; $v=v.3
+--> State of array after loop:
+array(0) {
+}
+
+
+
+Remove current element of a referenced array, using &$value
+---( Array with 1 element(s): )---
+--> State of referenced array before loop:
+array(1) {
+ [0]=>
+ string(3) "v.0"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 2 element(s): )---
+--> State of referenced array before loop:
+array(2) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 3 element(s): )---
+--> State of referenced array before loop:
+array(3) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+ iteration 2: $k=2; $v=v.2
+--> State of array after loop:
+array(0) {
+}
+
+---( Array with 4 element(s): )---
+--> State of referenced array before loop:
+array(4) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(3) "v.3"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+ iteration 2: $k=2; $v=v.2
+ iteration 3: $k=3; $v=v.3
+--> State of array after loop:
+array(0) {
+}
+
+
+
+Adding elements to the end of a referenced array, using &$value
+---( Array with 1 element(s): )---
+--> State of referenced array before loop:
+array(1) {
+ [0]=>
+ string(3) "v.0"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+--> State of array after loop:
+array(2) {
+ [0]=>
+ &string(3) "v.0"
+ [1]=>
+ string(5) "new.0"
+}
+
+---( Array with 2 element(s): )---
+--> State of referenced array before loop:
+array(2) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+ iteration 2: $k=2; $v=new.0
+ iteration 3: $k=3; $v=new.1
+ iteration 4: $k=4; $v=new.2
+ iteration 5: $k=5; $v=new.3
+ ** Stuck in a loop! **
+--> State of array after loop:
+array(8) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(5) "new.0"
+ [3]=>
+ string(5) "new.1"
+ [4]=>
+ string(5) "new.2"
+ [5]=>
+ &string(5) "new.3"
+ [6]=>
+ string(5) "new.4"
+ [7]=>
+ string(5) "new.5"
+}
+
+---( Array with 3 element(s): )---
+--> State of referenced array before loop:
+array(3) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+ iteration 2: $k=2; $v=v.2
+ iteration 3: $k=3; $v=new.0
+ iteration 4: $k=4; $v=new.1
+ iteration 5: $k=5; $v=new.2
+ ** Stuck in a loop! **
+--> State of array after loop:
+array(9) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(5) "new.0"
+ [4]=>
+ string(5) "new.1"
+ [5]=>
+ &string(5) "new.2"
+ [6]=>
+ string(5) "new.3"
+ [7]=>
+ string(5) "new.4"
+ [8]=>
+ string(5) "new.5"
+}
+
+---( Array with 4 element(s): )---
+--> State of referenced array before loop:
+array(4) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(3) "v.3"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=1; $v=v.1
+ iteration 2: $k=2; $v=v.2
+ iteration 3: $k=3; $v=v.3
+ iteration 4: $k=4; $v=new.0
+ iteration 5: $k=5; $v=new.1
+ ** Stuck in a loop! **
+--> State of array after loop:
+array(10) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(3) "v.3"
+ [4]=>
+ string(5) "new.0"
+ [5]=>
+ &string(5) "new.1"
+ [6]=>
+ string(5) "new.2"
+ [7]=>
+ string(5) "new.3"
+ [8]=>
+ string(5) "new.4"
+ [9]=>
+ string(5) "new.5"
+}
+
+
+
+Adding elements to the start of a referenced array, using &$value
+---( Array with 1 element(s): )---
+--> State of referenced array before loop:
+array(1) {
+ [0]=>
+ string(3) "v.0"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+--> State of array after loop:
+array(2) {
+ [0]=>
+ string(5) "new.0"
+ [1]=>
+ &string(3) "v.0"
+}
+
+---( Array with 2 element(s): )---
+--> State of referenced array before loop:
+array(2) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=new.0
+ iteration 2: $k=0; $v=new.1
+ iteration 3: $k=0; $v=new.2
+ iteration 4: $k=0; $v=new.3
+ iteration 5: $k=0; $v=new.4
+ ** Stuck in a loop! **
+--> State of array after loop:
+array(8) {
+ [0]=>
+ string(5) "new.5"
+ [1]=>
+ &string(5) "new.4"
+ [2]=>
+ string(5) "new.3"
+ [3]=>
+ string(5) "new.2"
+ [4]=>
+ string(5) "new.1"
+ [5]=>
+ string(5) "new.0"
+ [6]=>
+ string(3) "v.0"
+ [7]=>
+ string(3) "v.1"
+}
+
+---( Array with 3 element(s): )---
+--> State of referenced array before loop:
+array(3) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=new.0
+ iteration 2: $k=0; $v=new.1
+ iteration 3: $k=0; $v=new.2
+ iteration 4: $k=0; $v=new.3
+ iteration 5: $k=0; $v=new.4
+ ** Stuck in a loop! **
+--> State of array after loop:
+array(9) {
+ [0]=>
+ string(5) "new.5"
+ [1]=>
+ &string(5) "new.4"
+ [2]=>
+ string(5) "new.3"
+ [3]=>
+ string(5) "new.2"
+ [4]=>
+ string(5) "new.1"
+ [5]=>
+ string(5) "new.0"
+ [6]=>
+ string(3) "v.0"
+ [7]=>
+ string(3) "v.1"
+ [8]=>
+ string(3) "v.2"
+}
+
+---( Array with 4 element(s): )---
+--> State of referenced array before loop:
+array(4) {
+ [0]=>
+ string(3) "v.0"
+ [1]=>
+ string(3) "v.1"
+ [2]=>
+ string(3) "v.2"
+ [3]=>
+ string(3) "v.3"
+}
+--> Do loop:
+ iteration 0: $k=0; $v=v.0
+ iteration 1: $k=0; $v=new.0
+ iteration 2: $k=0; $v=new.1
+ iteration 3: $k=0; $v=new.2
+ iteration 4: $k=0; $v=new.3
+ iteration 5: $k=0; $v=new.4
+ ** Stuck in a loop! **
+--> State of array after loop:
+array(10) {
+ [0]=>
+ string(5) "new.5"
+ [1]=>
+ &string(5) "new.4"
+ [2]=>
+ string(5) "new.3"
+ [3]=>
+ string(5) "new.2"
+ [4]=>
+ string(5) "new.1"
+ [5]=>
+ string(5) "new.0"
+ [6]=>
+ string(3) "v.0"
+ [7]=>
+ string(3) "v.1"
+ [8]=>
+ string(3) "v.2"
+ [9]=>
+ string(3) "v.3"
+}
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