Finding a value within an array of arrays?

Question

I'm familiar with using in_array when I want to find if a value is in an array.

Is there a similar, and efficient approach, to return true or false if a value is within an array of arrays?

$example = array(
   array( 'small', 6789), 
   array( 'blue', 'duck', 'music'), 
   array( 1000, 'gems' ) 
);

In the above example I would want to return true if I were looking for 'blue'.

I know I can loop through the array and use in_array, but I'm sure I'm missing an easier (and faster) approach.

avengersassemble · Accepted Answer · 2020-08-04 21:53:17Z

2

Unless you want to change the data structure you're using to store this information I don't think there is a better way to check for an individual string than looping through each array and using in_array for each one.

Remember an array is an object in memory. The outer array is storing pointers to each of the arrays inside it, it does not have direct access to their contents.

answered Aug 4, 2020 at 21:53

avengersassemble

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