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added 165 characters in body

edited Dec 24, 2015 at 21:35

user2039981

May I write:

"1" + 1;

In PHP, to get 2, or do I have to cast first:

(int)"1" + 1;

? The reason I wonder this is because I have a counter in a text file that I want to increment:

file_put_contents($filename, file_get_contents($filename) + 1);

May I write:

"1" + 1;

In PHP, to get 2, or do I have to cast first:

(int)"1" + 1;

May I write:

"1" + 1;

In PHP, to get 2, or do I have to cast first:

(int)"1" + 1;

? The reason I wonder this is because I have a counter in a text file that I want to increment:

file_put_contents($filename, file_get_contents($filename) + 1);

asked Dec 24, 2015 at 21:34

user2039981

Is "1" + 1 correct in PHP?

May I write:

"1" + 1;

In PHP, to get 2, or do I have to cast first:

(int)"1" + 1;