PHP: Get key from array?
49
I am sure that this is super easy and built-in function in PHP, but I have yet not seen it.
Here's what I am doing for the moment:
foreach($array as $key => $value) {
echo $key; // Would output "subkey" in the example array
print_r($value);
}
Could I do something like the following instead and thereby save myself from writing "$key => $value" in every foreach loop? (psuedocode)
foreach($array as $subarray) {
echo arrayKey($subarray); // Will output the same as "echo $key" in the former example ("subkey"
print_r($value);
}
Thanks!
The array:
Array
(
[subKey] => Array
(
[value] => myvalue
)
)
php arrays multidimensional-array key
edited Feb 1 '14 at 18:48
aksu
4,51751837
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
|
show 4 more comments
49
I am sure that this is super easy and built-in function in PHP, but I have yet not seen it.
Here's what I am doing for the moment:
foreach($array as $key => $value) {
echo $key; // Would output "subkey" in the example array
print_r($value);
}
Could I do something like the following instead and thereby save myself from writing "$key => $value" in every foreach loop? (psuedocode)
foreach($array as $subarray) {
echo arrayKey($subarray); // Will output the same as "echo $key" in the former example ("subkey"
print_r($value);
}
Thanks!
The array:
Array
(
[subKey] => Array
(
[value] => myvalue
)
)
php arrays multidimensional-array key
edited Feb 1 '14 at 18:48
aksu
4,51751837
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
11
Whats wrong withforeach($array as $key => $value)? Or, asked the other way around, what's the point usingforeach($array as $value)when you actually need$keysomewhere down the road?
– Tomalak
Jul 23 '10 at 12:10
2
I just thought it could be a good idea to get the key in a quick way
– Industrial
Jul 23 '10 at 12:12
1
But you do get it in a quick way withforeach($array as $key => $value)... :-) Or is the situation not that you are in a foreach loop?
– Tomalak
Jul 23 '10 at 12:14
I am in a foreach loop for sure, but what i've thought about was to not change the foreach statement, but just printing out the key.
– Industrial
Jul 23 '10 at 12:21
3
Every function call you could make would be less efficient than simply changing to the appropriate foreach loop construct.
– Tomalak
Jul 23 '10 at 13:48
|
show 4 more comments
49
49
49
12
I am sure that this is super easy and built-in function in PHP, but I have yet not seen it.
Here's what I am doing for the moment:
foreach($array as $key => $value) {
echo $key; // Would output "subkey" in the example array
print_r($value);
}
Could I do something like the following instead and thereby save myself from writing "$key => $value" in every foreach loop? (psuedocode)
foreach($array as $subarray) {
echo arrayKey($subarray); // Will output the same as "echo $key" in the former example ("subkey"
print_r($value);
}
Thanks!
The array:
Array
(
[subKey] => Array
(
[value] => myvalue
)
)
php arrays multidimensional-array key
edited Feb 1 '14 at 18:48
aksu
4,51751837
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
I am sure that this is super easy and built-in function in PHP, but I have yet not seen it.
Here's what I am doing for the moment:
foreach($array as $key => $value) {
echo $key; // Would output "subkey" in the example array
print_r($value);
}
Could I do something like the following instead and thereby save myself from writing "$key => $value" in every foreach loop? (psuedocode)
foreach($array as $subarray) {
echo arrayKey($subarray); // Will output the same as "echo $key" in the former example ("subkey"
print_r($value);
}
Thanks!
The array:
Array
(
[subKey] => Array
(
[value] => myvalue
)
)
php arrays multidimensional-array key
php arrays multidimensional-array key
edited Feb 1 '14 at 18:48
aksu
4,51751837
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
edited Feb 1 '14 at 18:48
aksu
4,51751837
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
edited Feb 1 '14 at 18:48
aksu
4,51751837
edited Feb 1 '14 at 18:48
aksu
4,51751837
edited Feb 1 '14 at 18:48
aksu
4,51751837
4,51751837
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
asked Jul 23 '10 at 11:54
IndustrialIndustrial
15.5k57169275
15.5k57169275
11
Whats wrong withforeach($array as $key => $value)? Or, asked the other way around, what's the point usingforeach($array as $value)when you actually need$keysomewhere down the road?
– Tomalak
Jul 23 '10 at 12:10
2
I just thought it could be a good idea to get the key in a quick way
– Industrial
Jul 23 '10 at 12:12
1
But you do get it in a quick way withforeach($array as $key => $value)... :-) Or is the situation not that you are in a foreach loop?
– Tomalak
Jul 23 '10 at 12:14
I am in a foreach loop for sure, but what i've thought about was to not change the foreach statement, but just printing out the key.
– Industrial
Jul 23 '10 at 12:21
3
Every function call you could make would be less efficient than simply changing to the appropriate foreach loop construct.
– Tomalak
Jul 23 '10 at 13:48
|
show 4 more comments
11
Whats wrong withforeach($array as $key => $value)? Or, asked the other way around, what's the point usingforeach($array as $value)when you actually need$keysomewhere down the road?
– Tomalak
Jul 23 '10 at 12:10
2
I just thought it could be a good idea to get the key in a quick way
– Industrial
Jul 23 '10 at 12:12
1
But you do get it in a quick way withforeach($array as $key => $value)... :-) Or is the situation not that you are in a foreach loop?
– Tomalak
Jul 23 '10 at 12:14
I am in a foreach loop for sure, but what i've thought about was to not change the foreach statement, but just printing out the key.
– Industrial
Jul 23 '10 at 12:21
3
Every function call you could make would be less efficient than simply changing to the appropriate foreach loop construct.
– Tomalak
Jul 23 '10 at 13:48
11
11
Whats wrong with
foreach($array as $key => $value)? Or, asked the other way around, what's the point using foreach($array as $value) when you actually need $key somewhere down the road?– Tomalak
Jul 23 '10 at 12:10
Whats wrong with
foreach($array as $key => $value)? Or, asked the other way around, what's the point using foreach($array as $value) when you actually need $key somewhere down the road?– Tomalak
Jul 23 '10 at 12:10
2
2
I just thought it could be a good idea to get the key in a quick way
– Industrial
Jul 23 '10 at 12:12
I just thought it could be a good idea to get the key in a quick way
– Industrial
Jul 23 '10 at 12:12
1
1
But you do get it in a quick way with
foreach($array as $key => $value)... :-) Or is the situation not that you are in a foreach loop?– Tomalak
Jul 23 '10 at 12:14
But you do get it in a quick way with
foreach($array as $key => $value)... :-) Or is the situation not that you are in a foreach loop?– Tomalak
Jul 23 '10 at 12:14
I am in a foreach loop for sure, but what i've thought about was to not change the foreach statement, but just printing out the key.
– Industrial
Jul 23 '10 at 12:21
I am in a foreach loop for sure, but what i've thought about was to not change the foreach statement, but just printing out the key.
– Industrial
Jul 23 '10 at 12:21
3
3
Every function call you could make would be less efficient than simply changing to the appropriate foreach loop construct.
– Tomalak
Jul 23 '10 at 13:48
Every function call you could make would be less efficient than simply changing to the appropriate foreach loop construct.
– Tomalak
Jul 23 '10 at 13:48
|
show 4 more comments
8 Answers
8
active
oldest
votes
61
You can use key():
<?php
$array = array(
"one" => 1,
"two" => 2,
"three" => 3,
"four" => 4
);
while($element = current($array)) {
echo key($array)."n";
next($array);
}
?>
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
7
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
3
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
3
@Industrialforeachuses the key... if you want to use foreach, do this:foreach($array as $key => $value) { ... }
– Greg
Oct 16 '13 at 15:27
Dosn't work if the value is equal to0
– executable
Jan 2 at 14:02
add a comment |
38
Use the array_search function.
Example from php.net
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key = array_search('green', $array); // $key = 2;
$key = array_search('red', $array); // $key = 1;
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
add a comment |
29
$foo = array('a' => 'apple', 'b' => 'ball', 'c' => 'coke');
foreach($foo as $key => $item) {
echo $item.' is begin with ('.$key.')';
}
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
add a comment |
13
$array = array(0 => 100, "color" => "red");
print_r(array_keys($array));
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
add a comment |
5
If it IS a foreach loop as you have described in the question, using $key => $value is fast and efficient.
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
add a comment |
1
If you want to be in a foreach loop, then foreach($array as $key => $value) is definitely the recommended approach. Take advantage of simple syntax when a language offers it.
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
add a comment |
0
Another way to use key($array) in a foreach loop is by using next($array) at the end of the loop, just make sure each iteration calls the next() function (in case you have complex branching inside the loop)
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
add a comment |
0
Try this
foreach(array_keys($array) as $nmkey)
{
echo $nmkey;
}
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
add a comment |
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8 Answers
8
active
oldest
votes
8 Answers
8
active
oldest
votes
active
oldest
votes
active
oldest
votes
61
You can use key():
<?php
$array = array(
"one" => 1,
"two" => 2,
"three" => 3,
"four" => 4
);
while($element = current($array)) {
echo key($array)."n";
next($array);
}
?>
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
7
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
3
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
3
@Industrialforeachuses the key... if you want to use foreach, do this:foreach($array as $key => $value) { ... }
– Greg
Oct 16 '13 at 15:27
Dosn't work if the value is equal to0
– executable
Jan 2 at 14:02
add a comment |
61
You can use key():
<?php
$array = array(
"one" => 1,
"two" => 2,
"three" => 3,
"four" => 4
);
while($element = current($array)) {
echo key($array)."n";
next($array);
}
?>
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
7
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
3
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
3
@Industrialforeachuses the key... if you want to use foreach, do this:foreach($array as $key => $value) { ... }
– Greg
Oct 16 '13 at 15:27
Dosn't work if the value is equal to0
– executable
Jan 2 at 14:02
add a comment |
61
61
61
You can use key():
<?php
$array = array(
"one" => 1,
"two" => 2,
"three" => 3,
"four" => 4
);
while($element = current($array)) {
echo key($array)."n";
next($array);
}
?>
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
You can use key():
<?php
$array = array(
"one" => 1,
"two" => 2,
"three" => 3,
"four" => 4
);
while($element = current($array)) {
echo key($array)."n";
next($array);
}
?>
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
answered Jul 23 '10 at 12:28
vtorhonenvtorhonen
2,0691219
2,0691219
7
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
3
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
3
@Industrialforeachuses the key... if you want to use foreach, do this:foreach($array as $key => $value) { ... }
– Greg
Oct 16 '13 at 15:27
Dosn't work if the value is equal to0
– executable
Jan 2 at 14:02
add a comment |
7
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
3
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
3
@Industrialforeachuses the key... if you want to use foreach, do this:foreach($array as $key => $value) { ... }
– Greg
Oct 16 '13 at 15:27
Dosn't work if the value is equal to0
– executable
Jan 2 at 14:02
7
7
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
Hi! But key doesnt work in a foreach, right?
– Industrial
Jul 23 '10 at 12:49
3
3
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
I want to add that you can use key() ANYWHERE but for this problem it make sense to use it in a while-loop. You can use key() in the instance of only wanting the first/current array element's key.
– JRomero
Nov 21 '12 at 19:50
3
3
@Industrial
foreach uses the key... if you want to use foreach, do this: foreach($array as $key => $value) { ... }– Greg
Oct 16 '13 at 15:27
@Industrial
foreach uses the key... if you want to use foreach, do this: foreach($array as $key => $value) { ... }– Greg
Oct 16 '13 at 15:27
Dosn't work if the value is equal to
0– executable
Jan 2 at 14:02
Dosn't work if the value is equal to
0– executable
Jan 2 at 14:02
add a comment |
38
Use the array_search function.
Example from php.net
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key = array_search('green', $array); // $key = 2;
$key = array_search('red', $array); // $key = 1;
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
add a comment |
38
Use the array_search function.
Example from php.net
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key = array_search('green', $array); // $key = 2;
$key = array_search('red', $array); // $key = 1;
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
add a comment |
38
38
38
Use the array_search function.
Example from php.net
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key = array_search('green', $array); // $key = 2;
$key = array_search('red', $array); // $key = 1;
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
Use the array_search function.
Example from php.net
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');
$key = array_search('green', $array); // $key = 2;
$key = array_search('red', $array); // $key = 1;
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
answered Jul 23 '10 at 11:56
SarfrazSarfraz
300k65471547
300k65471547
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
add a comment |
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
Hi, updated my original post with an array example. Thanks!
– Industrial
Jul 23 '10 at 12:03
add a comment |
29
$foo = array('a' => 'apple', 'b' => 'ball', 'c' => 'coke');
foreach($foo as $key => $item) {
echo $item.' is begin with ('.$key.')';
}
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
add a comment |
29
$foo = array('a' => 'apple', 'b' => 'ball', 'c' => 'coke');
foreach($foo as $key => $item) {
echo $item.' is begin with ('.$key.')';
}
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
add a comment |
29
29
29
$foo = array('a' => 'apple', 'b' => 'ball', 'c' => 'coke');
foreach($foo as $key => $item) {
echo $item.' is begin with ('.$key.')';
}
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
$foo = array('a' => 'apple', 'b' => 'ball', 'c' => 'coke');
foreach($foo as $key => $item) {
echo $item.' is begin with ('.$key.')';
}
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
answered Aug 26 '12 at 13:27
Somwang SouksavatdSomwang Souksavatd
2,5301825
2,5301825
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
add a comment |
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
This needs to be higher
– Jakob Abfalter
Feb 22 '16 at 14:57
add a comment |
13
$array = array(0 => 100, "color" => "red");
print_r(array_keys($array));
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
add a comment |
13
$array = array(0 => 100, "color" => "red");
print_r(array_keys($array));
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
add a comment |
13
13
13
$array = array(0 => 100, "color" => "red");
print_r(array_keys($array));
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
$array = array(0 => 100, "color" => "red");
print_r(array_keys($array));
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
answered Jul 23 '10 at 11:58
sushil bharwanisushil bharwani
16.9k2979118
16.9k2979118
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
add a comment |
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
what's d difference?
– gumuruh
Apr 18 '12 at 9:17
add a comment |
5
If it IS a foreach loop as you have described in the question, using $key => $value is fast and efficient.
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
add a comment |
5
If it IS a foreach loop as you have described in the question, using $key => $value is fast and efficient.
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
add a comment |
5
5
5
If it IS a foreach loop as you have described in the question, using $key => $value is fast and efficient.
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
If it IS a foreach loop as you have described in the question, using $key => $value is fast and efficient.
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
answered Jul 23 '10 at 12:17
DogbertDogbert
152k28240265
152k28240265
add a comment |
add a comment |
1
If you want to be in a foreach loop, then foreach($array as $key => $value) is definitely the recommended approach. Take advantage of simple syntax when a language offers it.
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
add a comment |
1
If you want to be in a foreach loop, then foreach($array as $key => $value) is definitely the recommended approach. Take advantage of simple syntax when a language offers it.
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
add a comment |
1
1
1
If you want to be in a foreach loop, then foreach($array as $key => $value) is definitely the recommended approach. Take advantage of simple syntax when a language offers it.
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
If you want to be in a foreach loop, then foreach($array as $key => $value) is definitely the recommended approach. Take advantage of simple syntax when a language offers it.
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
answered Jun 5 '15 at 0:22
Mike LangMike Lang
663
663
add a comment |
add a comment |
0
Another way to use key($array) in a foreach loop is by using next($array) at the end of the loop, just make sure each iteration calls the next() function (in case you have complex branching inside the loop)
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
add a comment |
0
Another way to use key($array) in a foreach loop is by using next($array) at the end of the loop, just make sure each iteration calls the next() function (in case you have complex branching inside the loop)
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
add a comment |
0
0
0
Another way to use key($array) in a foreach loop is by using next($array) at the end of the loop, just make sure each iteration calls the next() function (in case you have complex branching inside the loop)
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
Another way to use key($array) in a foreach loop is by using next($array) at the end of the loop, just make sure each iteration calls the next() function (in case you have complex branching inside the loop)
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
answered Feb 2 '13 at 23:32
B Rad CB Rad C
3271516
3271516
add a comment |
add a comment |
0
Try this
foreach(array_keys($array) as $nmkey)
{
echo $nmkey;
}
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
add a comment |
0
Try this
foreach(array_keys($array) as $nmkey)
{
echo $nmkey;
}
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
add a comment |
0
0
0
Try this
foreach(array_keys($array) as $nmkey)
{
echo $nmkey;
}
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
Try this
foreach(array_keys($array) as $nmkey)
{
echo $nmkey;
}
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
edited Nov 8 '16 at 11:09
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
answered Jun 1 '16 at 12:27
ChamandeepChamandeep
9916
9916
add a comment |
add a comment |
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11
Whats wrong with
foreach($array as $key => $value)? Or, asked the other way around, what's the point usingforeach($array as $value)when you actually need$keysomewhere down the road?– Tomalak
Jul 23 '10 at 12:10
2
I just thought it could be a good idea to get the key in a quick way
– Industrial
Jul 23 '10 at 12:12
1
But you do get it in a quick way with
foreach($array as $key => $value)... :-) Or is the situation not that you are in a foreach loop?– Tomalak
Jul 23 '10 at 12:14
I am in a foreach loop for sure, but what i've thought about was to not change the foreach statement, but just printing out the key.
– Industrial
Jul 23 '10 at 12:21
3
Every function call you could make would be less efficient than simply changing to the appropriate foreach loop construct.
– Tomalak
Jul 23 '10 at 13:48