PHP big integer output into scientific notation

Provides various official and user-released code examples and code reference. You are welcome to exchange and learn about the latest projects and find that large integers will become scientific and technological outputs. A simple method found on the Internet.

$ Str = 2228282829299292;
// Failed
Echo (string) $ str; // 2.2282828292993E + 15 failed
Echo'
';
Echo ''. $ str; // 2.2282828292993E + 15
Echo'
';
Echo strval ($ str); // 2.2282828292993E + 15
Echo'
';
// Succeeded
Echo sprintf ("%. 0f", $ str );
Echo'
';
Echo number_format ($ str); // separated by three commas
?>

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