Referencing an index element in an array - PHP

Question

Here is the vardump for my array:

array(4) {
         [3]=> array(1) 
         {
             ["match"]=> int(33) 
         } 
         [2]=> array(1) 
         { 
             ["match"]=> int(32) 
         } 
         [1]=> array(1) 
         { 
             ["match"]=> int(16) 
         } 
         [4]=> array(1) 
         { 
             ["match"]=> int(3) 
         } 
}

I need to return the indexes 3, 2, 1, and 4 for use in a query. I have no idea how to do this. I need to run the query in a foreach statement:

foreach($arrayName as $key){
    //NEED TO RETURN INDEX HERE    
}

I've tried to use key($key) but that returned the word "match" which is the index of one level below where I need.

Any help will be appreciated.

In fact you are using foreach with the wrong semantics. It sould be like foreach($arrayName as $value) if you are using two operands. — vbence
– vbence, Commented Mar 2, 2011 at 15:25

vbence · Accepted Answer · 2011-03-02 15:16:26Z

7

foreach($arrayName as $key => $value){
    echo($key);    
}

answered Mar 2, 2011 at 15:16

vbence

20.4k10 gold badges74 silver badges119 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Ian Wood · Accepted Answer · 2011-03-02 15:16:21Z

6

Easy one ;)

$keys = array_keys($arrayName);

answered Mar 2, 2011 at 15:16

Ian Wood

6,5736 gold badges36 silver badges75 bronze badges

2 Comments

Ian Wood Over a year ago

Avoid running queries in loops - you should be more than able to formulate one query to it for you by using something like IN('.implode(',',$keys).') ...

Dan Hanly Over a year ago

Well I thought it was going to be more complicated than that. This is my first foray into large arrays, cheers for the help

steveo225 · Accepted Answer · 2011-03-02 15:18:41Z

4

foreach($arrayName as $key)

The $key is actually the value in the array. Try:

foreach($arrayName as $key=>$value)

answered Mar 2, 2011 at 15:18

steveo225

12k16 gold badges70 silver badges120 bronze badges

Comments

Nikoloff · Accepted Answer · 2011-03-02 15:18:09Z

3

Just add the key to the foreach:

foreach($arrayName as $key => $value){
       echo $key; //$key is well... the key and $value is the value of the current element in the array :)
}

answered Mar 2, 2011 at 15:18

Nikoloff

4,1602 gold badges19 silver badges19 bronze badges

Collectives™ on Stack Overflow

Referencing an index element in an array - PHP

4 Answers 4

Comments

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related