PHP - Ensure array has certain number of items
up vote
2
down vote
favorite
I have a PHP array which looks like this...
array
(
[0] => apple,
[1] => orange,
)
I need to ensure the array contains 4 items, so in the instance above I want to end up with this...
array
(
[0] => apple,
[1] => orange,
[2} => ,
[3] => ,
)
Am I best looping through this with a counter and creating a new array, or is there a better method?
php arrays
asked Nov 19 at 15:27
fightstarr20
2,7091148104
add a comment |
up vote
2
down vote
favorite
I have a PHP array which looks like this...
array
(
[0] => apple,
[1] => orange,
)
I need to ensure the array contains 4 items, so in the instance above I want to end up with this...
array
(
[0] => apple,
[1] => orange,
[2} => ,
[3] => ,
)
Am I best looping through this with a counter and creating a new array, or is there a better method?
php arrays
asked Nov 19 at 15:27
fightstarr20
2,7091148104
9
php.net/manual/en/function.array-pad.php
– iainn
Nov 19 at 15:28
1
Possible duplicate of In php how do I set the size of an array?
– CD001
Nov 19 at 15:29
add a comment |
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I have a PHP array which looks like this...
array
(
[0] => apple,
[1] => orange,
)
I need to ensure the array contains 4 items, so in the instance above I want to end up with this...
array
(
[0] => apple,
[1] => orange,
[2} => ,
[3] => ,
)
Am I best looping through this with a counter and creating a new array, or is there a better method?
php arrays
asked Nov 19 at 15:27
fightstarr20
2,7091148104
I have a PHP array which looks like this...
array
(
[0] => apple,
[1] => orange,
)
I need to ensure the array contains 4 items, so in the instance above I want to end up with this...
array
(
[0] => apple,
[1] => orange,
[2} => ,
[3] => ,
)
Am I best looping through this with a counter and creating a new array, or is there a better method?
php arrays
php arrays
asked Nov 19 at 15:27
fightstarr20
2,7091148104
asked Nov 19 at 15:27
fightstarr20
2,7091148104
asked Nov 19 at 15:27
fightstarr20
2,7091148104
asked Nov 19 at 15:27
fightstarr20
2,7091148104
asked Nov 19 at 15:27
fightstarr20
2,7091148104
2,7091148104
9
php.net/manual/en/function.array-pad.php
– iainn
Nov 19 at 15:28
1
Possible duplicate of In php how do I set the size of an array?
– CD001
Nov 19 at 15:29
add a comment |
9
php.net/manual/en/function.array-pad.php
– iainn
Nov 19 at 15:28
1
Possible duplicate of In php how do I set the size of an array?
– CD001
Nov 19 at 15:29
9
9
php.net/manual/en/function.array-pad.php
– iainn
Nov 19 at 15:28
php.net/manual/en/function.array-pad.php
– iainn
Nov 19 at 15:28
1
1
Possible duplicate of In php how do I set the size of an array?
– CD001
Nov 19 at 15:29
Possible duplicate of In php how do I set the size of an array?
– CD001
Nov 19 at 15:29
add a comment |
3 Answers
3
active
oldest
votes
up vote
6
down vote
accepted
Pad your array with elements to a size that you need:
$my_arr = [1,2];
$my_arr = array_pad($my_arr, 4, '');
answered Nov 19 at 15:32
u_mulder
34.6k52845
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
1
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length4 - count($my_arr) >= 1...
– War10ck
Nov 19 at 15:35
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
add a comment |
up vote
1
down vote
This should do what you're after
$iNumberOfElements = 5;
$a = array('apple', 'orange');
if(count($a) < $iNumberOfElements){
while (count($a) < $iNumberOfElements) {
$a = "";
}
}
var_dump($a);
exit;
answered Nov 19 at 15:31
atoms
1,77411021
add a comment |
up vote
1
down vote
as @iainn said: php.net/manual/en/function.array-pad.php
there is this function:
$input = array(12, 10, 9);
$result = array_pad($input, 5, 0);
// result is array(12, 10, 9, 0, 0)
5 is the size of your array, 0 is the default value to empty cells
answered Nov 19 at 15:33
Florent Cardot
182110
add a comment |
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
6
down vote
accepted
Pad your array with elements to a size that you need:
$my_arr = [1,2];
$my_arr = array_pad($my_arr, 4, '');
answered Nov 19 at 15:32
u_mulder
34.6k52845
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
1
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length4 - count($my_arr) >= 1...
– War10ck
Nov 19 at 15:35
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
add a comment |
up vote
6
down vote
accepted
Pad your array with elements to a size that you need:
$my_arr = [1,2];
$my_arr = array_pad($my_arr, 4, '');
answered Nov 19 at 15:32
u_mulder
34.6k52845
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
1
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length4 - count($my_arr) >= 1...
– War10ck
Nov 19 at 15:35
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
add a comment |
up vote
6
down vote
accepted
up vote
6
down vote
accepted
Pad your array with elements to a size that you need:
$my_arr = [1,2];
$my_arr = array_pad($my_arr, 4, '');
answered Nov 19 at 15:32
u_mulder
34.6k52845
Pad your array with elements to a size that you need:
$my_arr = [1,2];
$my_arr = array_pad($my_arr, 4, '');
answered Nov 19 at 15:32
u_mulder
34.6k52845
answered Nov 19 at 15:32
u_mulder
34.6k52845
answered Nov 19 at 15:32
u_mulder
34.6k52845
answered Nov 19 at 15:32
u_mulder
34.6k52845
34.6k52845
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
1
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length4 - count($my_arr) >= 1...
– War10ck
Nov 19 at 15:35
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
add a comment |
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
1
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length4 - count($my_arr) >= 1...
– War10ck
Nov 19 at 15:35
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Would this work if I don't know the number of elements in the array?
– fightstarr20
Nov 19 at 15:33
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
Why not? You pad array to required size. Number of required elements will be counted as required size minus current size.
– u_mulder
Nov 19 at 15:34
1
1
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length
4 - count($my_arr) >= 1...– War10ck
Nov 19 at 15:35
@fightstarr20 Yes. According to the docs - "...if the absolute value of size is less than or equal to the array length, no padding takes place." so it won't affect your array if the array already exceeds 4 elements. It will only pad arrays with length
4 - count($my_arr) >= 1...– War10ck
Nov 19 at 15:35
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
This works perfectly, thank you. Reading up on array_pad now
– fightstarr20
Nov 19 at 15:36
add a comment |
up vote
1
down vote
This should do what you're after
$iNumberOfElements = 5;
$a = array('apple', 'orange');
if(count($a) < $iNumberOfElements){
while (count($a) < $iNumberOfElements) {
$a = "";
}
}
var_dump($a);
exit;
answered Nov 19 at 15:31
atoms
1,77411021
add a comment |
up vote
1
down vote
This should do what you're after
$iNumberOfElements = 5;
$a = array('apple', 'orange');
if(count($a) < $iNumberOfElements){
while (count($a) < $iNumberOfElements) {
$a = "";
}
}
var_dump($a);
exit;
answered Nov 19 at 15:31
atoms
1,77411021
add a comment |
up vote
1
down vote
up vote
1
down vote
This should do what you're after
$iNumberOfElements = 5;
$a = array('apple', 'orange');
if(count($a) < $iNumberOfElements){
while (count($a) < $iNumberOfElements) {
$a = "";
}
}
var_dump($a);
exit;
answered Nov 19 at 15:31
atoms
1,77411021
This should do what you're after
$iNumberOfElements = 5;
$a = array('apple', 'orange');
if(count($a) < $iNumberOfElements){
while (count($a) < $iNumberOfElements) {
$a = "";
}
}
var_dump($a);
exit;
answered Nov 19 at 15:31
atoms
1,77411021
answered Nov 19 at 15:31
atoms
1,77411021
answered Nov 19 at 15:31
atoms
1,77411021
answered Nov 19 at 15:31
atoms
1,77411021
1,77411021
add a comment |
add a comment |
up vote
1
down vote
as @iainn said: php.net/manual/en/function.array-pad.php
there is this function:
$input = array(12, 10, 9);
$result = array_pad($input, 5, 0);
// result is array(12, 10, 9, 0, 0)
5 is the size of your array, 0 is the default value to empty cells
answered Nov 19 at 15:33
Florent Cardot
182110
add a comment |
up vote
1
down vote
as @iainn said: php.net/manual/en/function.array-pad.php
there is this function:
$input = array(12, 10, 9);
$result = array_pad($input, 5, 0);
// result is array(12, 10, 9, 0, 0)
5 is the size of your array, 0 is the default value to empty cells
answered Nov 19 at 15:33
Florent Cardot
182110
add a comment |
up vote
1
down vote
up vote
1
down vote
as @iainn said: php.net/manual/en/function.array-pad.php
there is this function:
$input = array(12, 10, 9);
$result = array_pad($input, 5, 0);
// result is array(12, 10, 9, 0, 0)
5 is the size of your array, 0 is the default value to empty cells
answered Nov 19 at 15:33
Florent Cardot
182110
as @iainn said: php.net/manual/en/function.array-pad.php
there is this function:
$input = array(12, 10, 9);
$result = array_pad($input, 5, 0);
// result is array(12, 10, 9, 0, 0)
5 is the size of your array, 0 is the default value to empty cells
answered Nov 19 at 15:33
Florent Cardot
182110
answered Nov 19 at 15:33
Florent Cardot
182110
answered Nov 19 at 15:33
Florent Cardot
182110
answered Nov 19 at 15:33
Florent Cardot
182110
182110
add a comment |
add a comment |
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9
php.net/manual/en/function.array-pad.php
– iainn
Nov 19 at 15:28
1
Possible duplicate of In php how do I set the size of an array?
– CD001
Nov 19 at 15:29