I have an array that looks like below:
$var[] = ^ array:4 [▼
0 => array:1 [▼
0 => "apple"
]
1 => array:1 [▼
0 => "apple"
1 => "grape"
]
2 => array:1 [▼
0 => "orange"
]
3 => array:1 [▼
0 => "banana"
]
]
Is there a way to convert this array into comma separated list with unique values as below?
$var = "apple,grape,orange,banana"
I tried implode(', ',$var) but it's not working as expected. Any help pls?
Update: My sub-array may have more than 1 element. It's dynamic.
My Answer:
array:3 [▼
0 => array:2 [▼
0 => "apple"
1 => "banana"
]
1 => array:2 [▼
0 => "orange"
1 => "apple"
]
2 => array:2 [▼
0 => "banana"
1 => "grapes"
]
]
I want to convert this array of arrays into a comma-separated list with unique values. The expected output should be:
"apple, banana, orange, grapes"
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