How to Efficiently Convert Comma-Separated Numbers to Floats in PHP?

Converting Numbers with Commas to Floats

In situations where third-party data presents prices with commas as decimal points and dots as thousand separators, it becomes necessary to convert these strings into float data types for further calculations.

The inherent formatting of the provided examples makes the use of the number_format function impractical, while str_replace appears suboptimal due to its repetitive application in multiple replacements.

Best Practices

Despite the initial impression of being excessive, the utilization of str_replace to remove dots and commas remains the most efficient approach.

$string_number = '1.512.523,55';
// floatval() usage emphasizes the conversion to a float value.
$number = floatval(str_replace(',', '.', str_replace('.', '', $string_number)));

// Demonstrating the converted float value.
print $number;

This method minimizes CPU consumption and outperforms potential alternative functions behind the scenes.

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