What are the potential implications of allowing commas in numerical values in PHP scripts?

Allowing commas in numerical values in PHP scripts can lead to unexpected behavior when performing mathematical operations or comparisons. To avoid this issue, you can remove commas from numerical values before using them in calculations or comparisons. 

// Remove commas from numerical values
$number = "1,234,567.89";
$number = str_replace(',', '', $number);

// Now $number can be safely used in calculations or comparisons
echo $number; // Output: 1234567.89

Keywords

PHP numerical values commas parsing data validation

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