How Can I Display Numeric Values with Two Decimal Places in PHP?

Displaying Numeric Values with Two Decimal Places

In the provided PHP script, the loop increments by 0.25 and includes values up to but not including 5.00. However, the values 5.00 and 4.50 are displayed incorrectly as 5 and 4.5, respectively, due to the limited precision of PHP's echo statement.

To resolve this issue, we can use formatting functions to explicitly specify the number of decimal places to display.

Using printf()

The printf() function allows us to control the formatting of output strings using placeholders like .2f, which specifies that the value should be formatted as a floating-point number with a total width of 1 character and 2 decimal places.

printf("%01.2f", $start);

Using sprintf()

The sprintf() function is similar to printf() but assigns the formatted value to a variable instead of printing it directly.

$var = sprintf("%01.2f", $start);

Using number_format()

PHP also provides the number_format() function, which offers additional options for formatting numbers according to various locale-specific rules. You can specify the number of decimal places and the decimal and thousand separators.

number_format($start, 2);

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