Easy way to parse array values [duplicate]

Question

Is there util that parses array content without the need of iterating it and parsing each value?

input: ['2','3','7']

output: [2, 3, 7]

can we read a text without iterating by all letters? i don't think so. to do operations on array values there's always the need to iterating it. if you uses an function, this function will for sure itinerate through its values — leoap
– leoap, Commented Nov 2, 2016 at 20:41
Why is this necessary? For most purposes where an int is needed, PHP will automatically handle the conversion anyway. — Don't Panic
– Don't Panic, Commented Nov 2, 2016 at 20:44

AbraCadaver · Accepted Answer · 2016-11-02 20:52:20Z

3

This obviously iterates internally, but you don't have to code an iterator:

$output = array_map('intval', $input);

Maps every value in $input to the intval() function and returns the result. For things that cannot be converted into an integer you'll get 0 or for objects, a notice and that value will not be returned.

I can't tell if you want to remove 0 values or not from your comment, but if so:

$output = array_filter(array_map('intval', $input));

edited Nov 2, 2016 at 20:52

answered Nov 2, 2016 at 20:40

AbraCadaver

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7 Comments

Jocky Doe Over a year ago

Can I hook to that fail convention 0 case? I might have valid zeros in the input

AbraCadaver Over a year ago

I don't know what you mean.

AbraCadaver Over a year ago

Do you mean remove 0 values???

Jocky Doe Over a year ago

ok my bad, understood

Don't Panic Over a year ago

@JockyDoe See the PHP manual for the rules on string conversion to number. Keep in mind that strings with mixed letters/numbers will convert to nonzero numbers if they begin with nonzero numbers.

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ninchen · Accepted Answer · 2016-11-02 20:46:25Z

-1

You can use array_map

array = ["2","3","4"];

$intArray = array_map('intval', $array);

answered Nov 2, 2016 at 20:46

ninchen

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2 Comments

Don't Panic Over a year ago

This is exactly the same as the other answer, but with no explanation.

ninchen Over a year ago

@Jocky Doe :). It is always a benefit, to learn how functions work. So i added a link to the PHP Manual.

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