REMOVING DOLLAR SIGNS FROM NUMERICAL VALUES - Oct 26th, 2012
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The easiest way to remove dollar signs from your data is not to allow them in the first place. But if you have to
include them, Greg Thomas, a developer at Interactive Tools offered this advice.
If you want to strip the dollar sign and comma from a number you could use these functions together:
$value = preg_replace('/[\$,]/', '', $value);
$value = floatval($value);
The preg_replace function will strip out the dollar sign and any commas. The floatval function will convert the number
from a string to a floating value, ensuring it will behave like a number if you want to use it for addition,
multiplication, etc.
To convert the number back to a currency format I would use this:
echo '$ '.number_format($number, 2, '.', ',');
The number_format function will take a number and convert it into string format it. In this case it makes the number
have two decimal places and adds a comma for every 3 digits.
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