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returnByReference.006.phpt
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Tue Feb 21 23:48:06 2012 UTC (12 years, 6 months ago) by
misho
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CVS tags:
v5_4_3elwix,
v5_4_29p0,
v5_4_29,
v5_4_20p0,
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v5_4_17p0,
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php
1: --TEST--
2: Returning a reference from a function via another function
3: --INI--
4: error_reporting = E_ALL & ~E_STRICT
5: --FILE--
6: <?php
7: function returnConstantByValue() {
8: return 100;
9: }
10:
11: function &returnConstantByRef() {
12: return 100;
13: }
14:
15: function &returnVariableByRef() {
16: return $GLOBALS['a'];
17: }
18:
19: function &returnFunctionCallByRef($functionToCall) {
20: return $functionToCall();
21: }
22:
23: echo "\n---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:\n";
24: unset($a, $b);
25: $a = 4;
26: $b = &returnFunctionCallByRef('returnConstantByValue');
27: $a++;
28: var_dump($a, $b);
29:
30: echo "\n---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:\n";
31: unset($a, $b);
32: $a = 4;
33: $b = &returnFunctionCallByRef('returnConstantByRef');
34: $a++;
35: var_dump($a, $b);
36:
37: echo "\n---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:\n";
38: unset($a, $b);
39: $a = 4;
40: $b = &returnFunctionCallByRef('returnVariableByRef');
41: $a++;
42: var_dump($a, $b);
43:
44: ?>
45: --EXPECTF--
46: ---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:
47:
48: Notice: Only variable references should be returned by reference in %s on line 15
49: int(5)
50: int(100)
51:
52: ---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:
53:
54: Notice: Only variable references should be returned by reference in %s on line 7
55: int(5)
56: int(100)
57:
58: ---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:
59: int(5)
60: int(5)
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