#6049: Set::extract using XPath extracts data inconsistently with classic
extract
when numeric keys do not start at zero
----------------------------+-----------------------------------------------
Reporter: datac0re | Type: Bug
Status: new | Priority: High
Milestone: 1.2.x.x | Component: Core Libs
Version: 1.2 Final | Severity: Normal
Keywords: set extract | Php_version: PHP 5
Cake_version: 1.2.0.7962 |
----------------------------+-----------------------------------------------
We've been trying to move away from the classic extract and towards the
XPath format and today noticed an inconsistency with the two formats when
extracting from an array with numeric keys that don't start at zero.
Consider the following array:
{{{
Dump of variable "$data":
Array
(
[Inbound Voice] => Array
(
[0] => 1.9333
[1] => 5.4000
[2] => 5.0000
[3] => 3.5667
[4] => 1.6167
[5] => 7.4000
[6] => 11.7333
[7] => 86.9833
[8] => 2099.4000
[9] => 5322.9500
[10] => 5537.9333
[11] => 5485.1167
[12] => 4152.2000
[13] => 4657.9667
[14] => 4936.2000
[15] => 4697.4333
[16] => 3653.8500
[17] => 321.6833
[18] => 84.2667
[19] => 85.4500
[20] => 55.5833
[21] => 19.1667
[22] => 21.5000
[23] => 2.1667
)
[Outbound Voice] => Array
(
[7] => 247.1833
[8] => 2906.6000
[9] => 7099.8500
[10] => 8706.7667
[11] => 8134.2500
[12] => 5790.0000
[13] => 7792.5833
[14] => 7632.3667
[15] => 7709.5167
[16] => 6521.5333
[17] => 719.1500
[18] => 93.4333
[19] => 32.9667
[20] => 26.6167
[21] => 0.5667
)
)
}}}
Using the 'Inbound Voice' first, we did the following comparison and got
what we expected (the same results with classic and XPath):
{{{
pr(Set::extract($data, 'Inbound Voice.{n}'));
pr(Set::extract('/Inbound Voice', $data));
Array
(
[0] => 1.9333
[1] => 5.4000
[2] => 5.0000
[3] => 3.5667
[4] => 1.6167
[5] => 7.4000
[6] => 11.7333
[7] => 86.9833
[8] => 2099.4000
[9] => 5322.9500
[10] => 5537.9333
[11] => 5485.1167
[12] => 4152.2000
[13] => 4657.9667
[14] => 4936.2000
[15] => 4697.4333
[16] => 3653.8500
[17] => 321.6833
[18] => 84.2667
[19] => 85.4500
[20] => 55.5833
[21] => 19.1667
[22] => 21.5000
[23] => 2.1667
)
Array
(
[0] => 1.9333
[1] => 5.4000
[2] => 5.0000
[3] => 3.5667
[4] => 1.6167
[5] => 7.4000
[6] => 11.7333
[7] => 86.9833
[8] => 2099.4000
[9] => 5322.9500
[10] => 5537.9333
[11] => 5485.1167
[12] => 4152.2000
[13] => 4657.9667
[14] => 4936.2000
[15] => 4697.4333
[16] => 3653.8500
[17] => 321.6833
[18] => 84.2667
[19] => 85.4500
[20] => 55.5833
[21] => 19.1667
[22] => 21.5000
[23] => 2.1667
)
}}}
Then we did the same test with the 'Outbound Voice', which if you'll
notice, starts its indexing at 7 instead of zero and got inconsistent
results:
{{{
pr(Set::extract($data, 'Outbound Voice.{n}'));
pr(Set::extract('/Outbound Voice', $data));
Array
(
[0] => 247.1833
[1] => 2906.6000
[2] => 7099.8500
[3] => 8706.7667
[4] => 8134.2500
[5] => 5790.0000
[6] => 7792.5833
[7] => 7632.3667
[8] => 7709.5167
[9] => 6521.5333
[10] => 719.1500
[11] => 93.4333
[12] => 32.9667
[13] => 26.6167
[14] => 0.5667
)
Array
(
[0] => Array
(
[Outbound Voice] => Array
(
[7] => 247.1833
[8] => 2906.6000
[9] => 7099.8500
[10] => 8706.7667
[11] => 8134.2500
[12] => 5790.0000
[13] => 7792.5833
[14] => 7632.3667
[15] => 7709.5167
[16] => 6521.5333
[17] => 719.1500
[18] => 93.4333
[19] => 32.9667
[20] => 26.6167
[21] => 0.5667
)
)
)
}}}
The classic extract worked as expected whereas the XPath version seemed to
get confused and returned the result incorrectly. I believe this is a bug
in the XPath implementation.
--
Ticket URL: <https://trac.cakephp.org/ticket/6049>
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