Posted By

iloveitaly on 12/17/09

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php
array

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Last Edited at 12/17/09 10:16am

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Flatten Array Using Index

/ Published in: PHP

Before:
`
Array
(
[0] => Array
(
[total_sessions] => 24
[study_type_id] => 1
)

[1] => Array
(
[total_sessions] => 24
[study_type_id] => 2
)

[2] => Array
(
[total_sessions] => 20
[study_type_id] => 3
)

[3] => Array
(
[total_sessions] => 10
[study_type_id] => 4
)

[4] => Array
(
[total_sessions] => 10
[study_type_id] => 5
)

[5] => Array
(
[total_sessions] => 10
[study_type_id] => 6
)

[6] => Array
(
[total_sessions] => 10
[study_type_id] => 7
)

[7] => Array
(
[total_sessions] => 8
[study_type_id] => 10
)

[8] => Array
(
[total_sessions] => 8
[study_type_id] => 12
)

)
`
After:
`
Array
(
[1] => Array
(
[total_sessions] => 24
)

[2] => Array
(
[total_sessions] => 24
)

[3] => Array
(
[total_sessions] => 20
)

[4] => Array
(
[total_sessions] => 10
)

[5] => Array
(
[total_sessions] => 10
)

[6] => Array
(
[total_sessions] => 10
)

[7] => Array
(
[total_sessions] => 10
)

[10] => Array
(
[total_sessions] => 8
)

[12] => Array
(
[total_sessions] => 8
)
)
`

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function flatten_array($arrayList, $key) {
	$newArray = array();
 
	foreach($arrayList as $array) {
		$index = $array[$key];
		unset($array[$key]);
		$newArray[$index] = $array;
	}
 
	return $newArray;
}