How to convert hexadecimal values ​​to pure strings in PHP?

When processing hexadecimal values ​​in PHP, it is often necessary to convert them to pure string form. For example, the hexadecimal number 0x102ff2021112902633030303030303032 , how to extract the string 102ff2021112902633030303030303032 ?

Direct string conversion may result in loss of large numerical accuracy. A more reliable method is to use PHP's base_convert() function, first convert hexadecimal to decimal, and then convert it to a string.

Code example:

 <?php $hex = 0x102ff202111290263303030303030303030303032;
$dec = base_convert($hex, 16, 10); // Hexadecimal to decimal $string = (string)$dec; // Decimal to string echo $string; // Output result?>

base_convert($hex, 16, 10) converts hexadecimal $hex to decimal $dec , and the parameters are: numerical value, source (16), and target (10). Then cast $dec to string $string and output. Compared with direct (string)$hex , this method avoids the 0x prefix, is more in line with the needs, and is more accurate and reliable in large-value processing.

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