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Editorial Team
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Asked: 2026-06-01T07:54:00+00:00

NSMutableArray *output = [[NSMutableArray alloc]init]; or NSArray *output = [[NSMutableArray alloc]init]; I can set

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NSMutableArray *output = [[NSMutableArray alloc]init];

or 

NSArray *output = [[NSMutableArray alloc]init];

I can set keys and values. Now, I just want to access each key and value, but I don’t know the number of keys set.

In PHP it is very easy, something as follows:

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

How is it possible in Objective-C?

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1 Answer

  1. Editorial Team

    I think you are confused with NSDictionary with NSArray.

    In NSDictionary you can set the object with the keys like

    NSMutableDictionary *output = [[NSMutableDictionary alloc]init]; 
[yourDictionary setObject:@"yourvalue" forKey:@"yourKey"];

    and you can get the object like

    [yourDictionary objectForKey:@"yourKey"];

    In your Array it just adds the object in the index.

    NSArray * output = [[NSArray alloc] initWithObjects:@"option1",@"option2", nil];

    get the object as 

    [output objectAtIndex:1];  // 1 is the index number
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