PHP get array key for lowest array value

Question

Using PHP, I am creating an array that contains multiple keys:

$loadAverage[$server] = $output["now"];

I am then checking the item with the lowest value

echo min($loadAverage);

but i need to get the key of the array not the value (so the $server part i need)

the above is returning the value and not the key of the PHP array

use an array_search() for that minimum value, which will return the key — Mark Baker
– Mark Baker, Commented Mar 9, 2015 at 23:11

Ben Harold · Accepted Answer · 2015-03-09 23:13:06Z

1

echo min(array_keys($loadAverage));

answered Mar 9, 2015 at 23:13

Ben Harold

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8 Comments

Charles Over a year ago

this is returning a number - it returns 0 which is the first array item

Rizier123 Over a year ago

Now the question is if OP wants the lowest key or the lowest value and the key from the value

Charles Over a year ago

i want the lowest value and i need the key to be returned

Rizier123 Over a year ago

@Charles There you go: stackoverflow.com/questions/28953427/…

RST Over a year ago

@Rizier123 you are directing him to his own question?

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RST · Accepted Answer · 2015-03-09 23:23:05Z

1

$lowest_key = array_keys($loadAverage, min($loadAverage));
echo $lowest_key[0];

By supplying a search element you only get the key of that value.

edited Mar 9, 2015 at 23:23

answered Mar 9, 2015 at 23:18

RST

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2 Comments

Charles Over a year ago

this is returning Array

RST Over a year ago

the value is in the array

Charles · Accepted Answer · 2015-03-09 23:21:49Z

0

echo array_search(min($loadAverage), $loadAverage);

answered Mar 9, 2015 at 23:21

Charles

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