How PHP displays large numbers, preventing them from appearing as scientific counting methods

When a PHP number exceeds a certain length, it is automatically converted to the form of scientific notation , such as 1.2345678912346E+16;
How do you avoid conversion and let it show as it is?

However, you can use PHP function number_format () to format the numbers, the reference code is as follows:

$str = Number_format (123456789123456789123456, 0, ",");p Rint_r ($STR);

Output AS-is:

123456789123456789123456

Extended reading:

PHP retains 2 decimal places formatted decimals, floating-point numbers

How PHP displays large numbers, preventing them from appearing as scientific counting methods