PHP将字符串中的字符“，”替换为“。”[复制]

Question

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• Unformat money when parsing in PHP 8 answers

How to convert a string like "3,2563" to "3.2563",

$number = "3,2563" ;
setlocale(LC_MONETARY,"en_US");
echo money_format("%.4n", $number);

or

$number = number_format($number,4,".","");

Both examples output just 3.0000

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Answer 1

The string "3,2563" is not a number, thus - it cannot be used as such. It can easily be converted to a float number, using PHP function str_replace and type casting.

$number = "3,2563";
$number = (float)str_replace(",", ".", $number); // returns (float) 3.2563
// Do whatever you want to do. Now $number is a float.

Using str_replace, the , is replaced with a .

Note that the decimals separator can vary, depending on your PHP configuration.