search for a string in array of arrays in PHP

Question

I have an array like this. I get this from a server's response :

So sometimes the array is like this :

$array = 
    Array
    (
        [0] => Message: Thanks for all 
        [1] => Response: Goodbye
        [2] => 
        [3] =>  inactive
        [4] =>  active call
        [5] =>  active channels
        [6] =>  Hello                                             
        [7] =>  Hi
        [8] =>  yes     
        [9] =>  no      
    )

and sometimes it's like this :

$array = 
    Array
    (
        [0] => Message: Thanks for all 
        [1] => Response: Goodbye
        [2] => 
        [3] => SessionTV: 2019-06-24T17:29:53.925+0530
        [4] => SessionTV: 2019-06-24T17:29:53.925+0530
        [5] => SessionTV: 2019-06-24T17:29:53.925+0530
        [6] => Event: 0
        [7] =>  active channels
        [8] =>  Hello                                             
        [9] =>  Hi
        [10] =>             
    )

This is what I tried :

if (in_array("Event:", $array)) 
  { 

        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
  } 
else
  { 

        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
        array_shift($minarr);
    }

But this doesn't work.

Expected output in both cases is :

Array
(
    [0] =>  Hello                                             
    [1] =>  Hi
    [2] =>  yes   
    [3] =>  no        
)

and

Array
(
    [0] =>  Hello                                             
    [1] =>  Hi
    [2] =>        
)

So basically I just shift some rows from the array if it contains the string Event: and shift some other rows if it doesn't contain the string Event: .

How do I search for a string in an array like this?

Event: doesn't exist in the first type of the array. So how did you come up with it's result like that. Can you elaborate? — mighty_dev
– mighty_dev, Commented Jun 24, 2019 at 12:28
So basically you want to get all elements after the active channels value? — Qirel
– Qirel, Commented Jun 24, 2019 at 12:30
So you always want occurances [8] and [9] from the original array regardless of whether the array contains an occurance with Event: in it or not? Is that right?? — RiggsFolly
– RiggsFolly, Commented Jun 24, 2019 at 12:31
Can you explain the logic behind your goal instead of showing your solution and expecting us to understand your issue? — MonkeyZeus
– MonkeyZeus, Commented Jun 24, 2019 at 12:32
What @Qirel said. You just want everything after "active channels"? — MonkeyZeus
– MonkeyZeus, Commented Jun 24, 2019 at 12:33

Qirel · Accepted Answer · 2019-06-24 15:04:39Z

1

If the goal is to obtain all values after active channel, and assuming that all values in the array is numerically indexed, then you can find the active channels element with array_search(). This returns the key of that element (first occurrence). Use this with array_slice() to slice away those first elements. Add 1 to the return of array_search(), as you want to remove that as well.

$key = array_search('active channels', $array);
$output = array_slice($array, $key + 1);

If your array is not numerically indexed, you can fetch the values by using array_values() first, which is the same array, just numerically indexed.

$array = array_values($array);
$key = array_search('active channels', $array);
$output = array_slice($array, $key + 1);

Live demo at https://3v4l.org/UVUsr

edited Jun 24, 2019 at 15:04

answered Jun 24, 2019 at 12:45

Qirel

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Comments

Rakesh Jakhar · Accepted Answer · 2019-06-24 12:38:09Z

1

you can use array_walk with strpos , the solution is based on the provided input

$res = [];
array_walk($array, function($v, $k) use (&$res){
  if(strpos($v, ':') === false && strpos($v, 'active') === false && $v != ''){
    $res[] = $v;
  }
});

https://3v4l.org/JDFZg

answered Jun 24, 2019 at 12:38

Rakesh Jakhar

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2 Comments

Qirel Over a year ago

What if the word in one of the final elements contains : or active?

Rakesh Jakhar Over a year ago

@Qirel thats why i have mentioned the solution is based on the provided input

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