Take the value from array in php and explode

Question

I have this the values of in my array as

$itsthere = (item1-0-100, item2-0-50, item3-0-70, item4-0-50, item5-0-100);

If the user enter the value item3 he has to get 70 which is present in array. I tried alot using explode but its not showing proper value. Can any one help me.

Don't just tell us that you tried using explode, show how you tried to do it. — Barmar
– Barmar, Commented Aug 30, 2013 at 10:53
And are these strings? array("item1-0-100", "item2-0-50", ...) or is one of the parts a key? — Tobias Golbs
– Tobias Golbs, Commented Aug 30, 2013 at 10:53
What does your code look like at the moment? If you post what you are using, we can probably look at it and see what the problem is. As it stands, someone has to write a completely new bit of code. — Fluffeh
– Fluffeh, Commented Aug 30, 2013 at 10:54

hsz · Accepted Answer · 2013-08-30 10:55:01Z

5

Try with:

$itsthere = array(
  'item1-0-100',
  'item2-0-50',
  'item3-0-70',
  'item4-0-50',
  'item5-0-100'
);

$search = 'item3';
$output = '';

foreach ( $itsthere as $value ) {
  if ( strpos($search . '-', $value) === 0 ) {
    $output = explode('-', $value)[2];
    break;
  }
}

answered Aug 30, 2013 at 10:55

hsz

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3 Comments

Tobias Golbs Over a year ago

You have a typo @strpos($seach ...

Dexygen Over a year ago

What if the user needs to do this over and over again? There's a much better way

hsz Over a year ago

@GeorgeJempty Suggest something then. :-)

Imanol · Accepted Answer · 2013-08-30 10:59:02Z

1

When you say item3 are you refering to the third position or the item3 as array key? I think you can create a assoc array and make item names as key

$isthere = array('item1' => '0-100', 'item2' => '0-50' ,'item3' => '0-70', ....,);
echo $isthere['item3']; // This would give you the value.

If you only want to know if this key is in the array use array_key_exists.

answered Aug 30, 2013 at 10:59

Imanol

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Comments

Devang Rathod · Accepted Answer · 2013-08-30 11:01:25Z

-1

Try this :

    $item = 'item3';
    $itsthere = array('item1-0-100', 'item2-0-50', 'item3-0-70', 'item4-0-50', 'item5-0-100');

    foreach($itsthere as $there)
    {
        $exp = explode('-',$there);
        if($exp[0] == 'item3') {
            echo $val = $exp[2];
        };
    }

answered Aug 30, 2013 at 11:01

Devang Rathod

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9 Comments

hsz Over a year ago

There are two ways to improve performace - break after found result and strpos before unnecessary explode - as in my answer.

Dexygen Over a year ago

break barely improves performance, it's still O-n in algorithm speak. If you want to improve performance, iterate (O-n) the array once and create a lookup table, instead of O-n performance every single time.

Devang Rathod Over a year ago

@GeorgeJempty ok next time i will doing like this.

user2642907 Over a year ago

whats wrong in this george, i use break; after echo $val = $exp[2];

Devang Rathod Over a year ago

@GeorgeJempty why you remove answer ?

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