Extracting values from an array?

Posted on 2012-12-21
Last Modified: 2012-12-21
Hi, I have an array as follows, I need only array[2] and array[3], how can I extract only these two array? Some time there will be more than two hosts, in essence I need all the array values between array[1] and the array that that has the string "registrations.". How can I do this?

    [0] => Privilege: Command
    [1] => Host          username       password                          
    [2] => host01       user1             pw01            
    [3] => host02       user2             pw02  
    [4] => 2  registrations.
    [5] =>
    [6] => Follows

Thanks of the help.

Question by:aej1973
  • 2
  • 2

Accepted Solution

brendonfeeley earned 150 total points
ID: 38714102
Something like this should work:

//Loop through array
for($i = 2; $i < sizeof($array); $i++){
	//Look for registrations string. Break if found, push host details to new array if not.
	if(strpos($array[$i], ' registrations.') !== false) {
		array_push($hosts_array, $array[$i]);


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Author Comment

ID: 38714367
brendonfeeley, thank you. I am not sure why but I keep getting the following error:

PHP Warning:  array_push() expects parameter 1 to be array, null given in /var/www/registryShowCli.php on line 19
PHP Warning:  array_push() expects parameter 1 to be array, null given in /var/www/registryShowCli.php on line 19

My code is as follows:

 $peer = implode("\n", $peer);//puts the whole thing in an array
 $row = explode("\n", $peer);//puts each line in an array
             for($i = 2; $i < sizeof($row); $i++){
                 if(strpos($row[$i], 'registrations.') !== false) {
                array_push($rows, $row[$i]);


Expert Comment

ID: 38714392
Place this line before the loop:

$rows = array();

The array needs to exist before you can push to it.

You could also replace the array_push with the following:

$rows[] = $row[$i];

Author Comment

ID: 38714410

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