number after decimal point in php code example

Example 1: fix to 2 decimal places php

return number_format((float)$number, 2, '.', '');

Example 2: two digits after decimal point in php

echo round(520.34345, 2);   // 520.34
echo round(520.3, 2);       // 520.3
echo round(520, 2);         // 520