stay with the last 15 elements of an array [duplicate]
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1
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This question already has an answer here:
PHP get the last 3 elements of an array
4 answers
I have a database on couchdb, each document has a slightly complex structure, here is a small part:
"category": {
"1496805145": -1,
"1497064141": -1,
"1497150993": -1,
"1497322542": -1,
"1497487102": -1,
"1497571701": -1,
"1497657026": -1,
"1497749178": -1,
"1497920895": -1,
"1498005644": -1,
"1498091037": -1,
"1498179039": -1,
"1502183511": -1,
"1502309289": -1,
"1502395763": -1,
"1502482211": -1,
"1502568580": -1,
"1502655044": -1,
"1502741651": -1,
"1502827775": -1,
"1502914685": -1
I previously had more values, and this does not make sense, so I've made a code to limit it to a maximum of 15 values.
$keys = array_keys((array)$pro["sources"][$id]);
if(count($keys)>15)
{
$keys = asort($keys);
foreach($keys as $key)
{
if(count($keys) <= 15) break;
else
{
unset($pro["sources"][$id][$key]);
unset($keys[$key]);
}
}
}
my question is is there a php function that says "save me the last 15 elements of the arrray, but remove all the others"?
php
asked Nov 19 at 16:23
Carlos
416
marked as duplicate by RiggsFolly php
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Nov 19 at 16:28
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
up vote
1
down vote
favorite
This question already has an answer here:
PHP get the last 3 elements of an array
4 answers
I have a database on couchdb, each document has a slightly complex structure, here is a small part:
"category": {
"1496805145": -1,
"1497064141": -1,
"1497150993": -1,
"1497322542": -1,
"1497487102": -1,
"1497571701": -1,
"1497657026": -1,
"1497749178": -1,
"1497920895": -1,
"1498005644": -1,
"1498091037": -1,
"1498179039": -1,
"1502183511": -1,
"1502309289": -1,
"1502395763": -1,
"1502482211": -1,
"1502568580": -1,
"1502655044": -1,
"1502741651": -1,
"1502827775": -1,
"1502914685": -1
I previously had more values, and this does not make sense, so I've made a code to limit it to a maximum of 15 values.
$keys = array_keys((array)$pro["sources"][$id]);
if(count($keys)>15)
{
$keys = asort($keys);
foreach($keys as $key)
{
if(count($keys) <= 15) break;
else
{
unset($pro["sources"][$id][$key]);
unset($keys[$key]);
}
}
}
my question is is there a php function that says "save me the last 15 elements of the arrray, but remove all the others"?
php
asked Nov 19 at 16:23
Carlos
416
marked as duplicate by RiggsFolly php
Users with the php badge can single-handedly close php questions as duplicates and reopen them as needed.
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Nov 19 at 16:28
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
3
array_slice
– Federico klez Culloca
Nov 19 at 16:25
4
If I'm understanding correctly, thenarray_slice($array, -15)?
– George
Nov 19 at 16:25
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
This question already has an answer here:
PHP get the last 3 elements of an array
4 answers
I have a database on couchdb, each document has a slightly complex structure, here is a small part:
"category": {
"1496805145": -1,
"1497064141": -1,
"1497150993": -1,
"1497322542": -1,
"1497487102": -1,
"1497571701": -1,
"1497657026": -1,
"1497749178": -1,
"1497920895": -1,
"1498005644": -1,
"1498091037": -1,
"1498179039": -1,
"1502183511": -1,
"1502309289": -1,
"1502395763": -1,
"1502482211": -1,
"1502568580": -1,
"1502655044": -1,
"1502741651": -1,
"1502827775": -1,
"1502914685": -1
I previously had more values, and this does not make sense, so I've made a code to limit it to a maximum of 15 values.
$keys = array_keys((array)$pro["sources"][$id]);
if(count($keys)>15)
{
$keys = asort($keys);
foreach($keys as $key)
{
if(count($keys) <= 15) break;
else
{
unset($pro["sources"][$id][$key]);
unset($keys[$key]);
}
}
}
my question is is there a php function that says "save me the last 15 elements of the arrray, but remove all the others"?
php
asked Nov 19 at 16:23
Carlos
416
This question already has an answer here:
PHP get the last 3 elements of an array
4 answers
I have a database on couchdb, each document has a slightly complex structure, here is a small part:
"category": {
"1496805145": -1,
"1497064141": -1,
"1497150993": -1,
"1497322542": -1,
"1497487102": -1,
"1497571701": -1,
"1497657026": -1,
"1497749178": -1,
"1497920895": -1,
"1498005644": -1,
"1498091037": -1,
"1498179039": -1,
"1502183511": -1,
"1502309289": -1,
"1502395763": -1,
"1502482211": -1,
"1502568580": -1,
"1502655044": -1,
"1502741651": -1,
"1502827775": -1,
"1502914685": -1
I previously had more values, and this does not make sense, so I've made a code to limit it to a maximum of 15 values.
$keys = array_keys((array)$pro["sources"][$id]);
if(count($keys)>15)
{
$keys = asort($keys);
foreach($keys as $key)
{
if(count($keys) <= 15) break;
else
{
unset($pro["sources"][$id][$key]);
unset($keys[$key]);
}
}
}
my question is is there a php function that says "save me the last 15 elements of the arrray, but remove all the others"?
This question already has an answer here:
PHP get the last 3 elements of an array
4 answers
php
php
asked Nov 19 at 16:23
Carlos
416
asked Nov 19 at 16:23
Carlos
416
asked Nov 19 at 16:23
Carlos
416
asked Nov 19 at 16:23
Carlos
416
asked Nov 19 at 16:23
Carlos
416
416
marked as duplicate by RiggsFolly php
Users with the php badge can single-handedly close php questions as duplicates and reopen them as needed.
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Nov 19 at 16:28
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by RiggsFolly php
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Nov 19 at 16:28
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
3
array_slice
– Federico klez Culloca
Nov 19 at 16:25
4
If I'm understanding correctly, thenarray_slice($array, -15)?
– George
Nov 19 at 16:25
add a comment |
3
array_slice
– Federico klez Culloca
Nov 19 at 16:25
4
If I'm understanding correctly, thenarray_slice($array, -15)?
– George
Nov 19 at 16:25
3
3
array_slice– Federico klez Culloca
Nov 19 at 16:25
array_slice– Federico klez Culloca
Nov 19 at 16:25
4
4
If I'm understanding correctly, then
array_slice($array, -15)?– George
Nov 19 at 16:25
If I'm understanding correctly, then
array_slice($array, -15)?– George
Nov 19 at 16:25
add a comment |
2 Answers
2
active
oldest
votes
up vote
2
down vote
accepted
Use array_slice($a, -15, 15, true); where $a is the array.
-15 tells the function to start from 15 elements from the end.
15 tells the function to get 15 elements.
true tells the function to also preserve the keys, and I am assuming you do.
If you do not want to preserve the keys, you can use array_slice($a, -15); Since the third argument is missing, it will get the elements until the last is reached (so, 15)
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
add a comment |
up vote
2
down vote
I think you want array_slice(). You give it an offset and a length, and it will return those values as an array. See the PHP docs: http://php.net/manual/en/function.array-slice.php
an example of this:
$truncatedArray = array_slice($pro, -15);
This would give you the last 15 elements of the array $pro
answered Nov 19 at 16:25
jamie schnaitter
846
1
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
Use array_slice($a, -15, 15, true); where $a is the array.
-15 tells the function to start from 15 elements from the end.
15 tells the function to get 15 elements.
true tells the function to also preserve the keys, and I am assuming you do.
If you do not want to preserve the keys, you can use array_slice($a, -15); Since the third argument is missing, it will get the elements until the last is reached (so, 15)
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
add a comment |
up vote
2
down vote
accepted
Use array_slice($a, -15, 15, true); where $a is the array.
-15 tells the function to start from 15 elements from the end.
15 tells the function to get 15 elements.
true tells the function to also preserve the keys, and I am assuming you do.
If you do not want to preserve the keys, you can use array_slice($a, -15); Since the third argument is missing, it will get the elements until the last is reached (so, 15)
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
Use array_slice($a, -15, 15, true); where $a is the array.
-15 tells the function to start from 15 elements from the end.
15 tells the function to get 15 elements.
true tells the function to also preserve the keys, and I am assuming you do.
If you do not want to preserve the keys, you can use array_slice($a, -15); Since the third argument is missing, it will get the elements until the last is reached (so, 15)
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
Use array_slice($a, -15, 15, true); where $a is the array.
-15 tells the function to start from 15 elements from the end.
15 tells the function to get 15 elements.
true tells the function to also preserve the keys, and I am assuming you do.
If you do not want to preserve the keys, you can use array_slice($a, -15); Since the third argument is missing, it will get the elements until the last is reached (so, 15)
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
edited Nov 20 at 11:18
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
answered Nov 19 at 16:26
Kristjan Kica
2,0741826
2,0741826
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
add a comment |
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
Yes, but that works without preserving the key. Since false is the default argument.
– Kristjan Kica
Nov 19 at 16:29
add a comment |
up vote
2
down vote
I think you want array_slice(). You give it an offset and a length, and it will return those values as an array. See the PHP docs: http://php.net/manual/en/function.array-slice.php
an example of this:
$truncatedArray = array_slice($pro, -15);
This would give you the last 15 elements of the array $pro
answered Nov 19 at 16:25
jamie schnaitter
846
1
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
add a comment |
up vote
2
down vote
I think you want array_slice(). You give it an offset and a length, and it will return those values as an array. See the PHP docs: http://php.net/manual/en/function.array-slice.php
an example of this:
$truncatedArray = array_slice($pro, -15);
This would give you the last 15 elements of the array $pro
answered Nov 19 at 16:25
jamie schnaitter
846
1
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
add a comment |
up vote
2
down vote
up vote
2
down vote
I think you want array_slice(). You give it an offset and a length, and it will return those values as an array. See the PHP docs: http://php.net/manual/en/function.array-slice.php
an example of this:
$truncatedArray = array_slice($pro, -15);
This would give you the last 15 elements of the array $pro
answered Nov 19 at 16:25
jamie schnaitter
846
I think you want array_slice(). You give it an offset and a length, and it will return those values as an array. See the PHP docs: http://php.net/manual/en/function.array-slice.php
an example of this:
$truncatedArray = array_slice($pro, -15);
This would give you the last 15 elements of the array $pro
answered Nov 19 at 16:25
jamie schnaitter
846
edited Nov 19 at 16:36
answered Nov 19 at 16:25
jamie schnaitter
846
answered Nov 19 at 16:25
jamie schnaitter
846
answered Nov 19 at 16:25
jamie schnaitter
846
846
1
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
add a comment |
1
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
1
1
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
It would be better to include the essential parts of the answer here and provide the link for reference
– B001ᛦ
Nov 19 at 16:29
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
@B001ᛦ alright, that makes sense. Thank you.
– jamie schnaitter
Nov 19 at 16:33
add a comment |
3
array_slice– Federico klez Culloca
Nov 19 at 16:25
4
If I'm understanding correctly, then
array_slice($array, -15)?– George
Nov 19 at 16:25