Here is an array that I want to sort. This is taken by an HTML table that is already stored in the database. But here it has 50 indexes. That's the thing I want to reduce to seven.
(
[0] => Array
(
[0] =>
[1] => data
[2] => data
[3] => data
[4] => data
[5] =>
[6] =>
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)
[1] => Array
(
[0] =>
[1] =>
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)
[2] => Array
(
[0] => 1
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
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)
[3] => Array
(
[0] => 2
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
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)
[4] => Array
(
[0] => 3
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
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)
[5] => Array
(
[0] => 4
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
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)
[6] => Array
(
[0] => 5
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
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)
[7] => Array
(
[0] => 6
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
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[50] =>
)
[8] => Array
(
[0] => 7
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
[8] =>
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[48] =>
[49] =>
[50] =>
)
[9] => Array
(
[0] => 8
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
[8] =>
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)
[10] => Array
(
[0] => 9
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
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[48] =>
[49] =>
[50] =>
)
)
I tried with for loops, foreach loops to sort this array shows up to 7 indexes. It should be like this.
(
[0] => Array
(
[0] =>
[1] => data
[2] => data
[3] => data
[4] => data
[5] =>
[6] =>
[7] =>
)
[1] => Array
(
[0] =>
[1] =>
[2] =>
[3] =>
[4] =>
[5] =>
[6] =>
[7] =>
)
[2] => Array
(
[0] => 1
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[3] => Array
(
[0] => 2
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[4] => Array
(
[0] => 3
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[5] => Array
(
[0] => 4
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[6] => Array
(
[0] => 5
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[7] => Array
(
[0] => 6
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[8] => Array
(
[0] => 7
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[9] => Array
(
[0] => 8
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
[10] => Array
(
[0] => 9
[1] => data
[2] => data
[3] => data
[4] => data
[5] => data
[6] =>
[7] =>
)
)
What did I try is,
for ($row = 0; $row <= sizeof($arr); $row ) {
for ($col = 0; $col < 7; $col ) {
$aar[] = $arr[$row][$col];
}
}
This method wasn't worked. What is the way or any suggestions on this?
CodePudding user response：
If you just want to keep x amount of elements from each sub-array, you can use array_slice():
$newArray = [];
foreach($arr as $sub) {
// The example array you say you want have 8 elements, indexes 0-7
// so start with index 0 and take 8
$newArray[] = array_slice($sub, 0, 8);
}
Here's a demo: https://3v4l.org/WhFm4
CodePudding user response：
Here is the one possible solution to your problem. Just define the key limit in if condition. Hope it will solve your problem.
$row = [
[
'',
'data',
'data',
'data',
'',
'',
'',
''
],
[
'',
'data',
'data',
'data',
'',
'',
'',
''
]
];
$reducedArray = [];
foreach ($row as $col) {
$tempArray = [];
foreach ($col as $innnerKey => $innerValue) {
// Define your index limit here.
// As you can see I have set the limit to 7
if ($innnerKey <= 7) {
$tempArray[] = $innerValue;
}
}
$reducedArray[] = $tempArray;
}
echo '<pre>';
print_r($row);
echo '</pre>';
echo '<br/>';
echo '<pre>';
print_r($reducedArray);
echo '</pre>';