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In php, is 123==0123?
The answer is No. This is because 0123 means 123 with base 8 (an octal number) and its equivalent in decimal is 83.
Prefixing a number with 0 indicates that it is an octal (base 8) number. This is similar to the fact that 0x indicates hex (base 16) numbers.
Consider the below lines of code −
Example
var_dump(123); var_dump(0123);
Output
This will produce the following output −
int 123 int 83
This is due to the fact that 0123 is an octal notation (notice the 0 at the beginning), whereas 123 is a decimal number.
Now consider the below code −
Example
var_dump(79); var_dump(079);
Output
This will produce the following output −
int 79 int 7
Updated on: 06-Apr-2020
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