The `convert_uudecode()` function in PHP decodes a uuencoded string. Uuencode (Unix-to-Unix encoding) is a method of encoding binary data as ASCII text.PHP 8.PHP 8.1,PHP 8.2,PHP 8.3 and PHP 8.4.

Example Usage<?php// Original string$original = "Hello, World!";// Uuencode the string first (for demonstration)$encoded = convert_uuencode($original);echo "Encoded: " . $encoded . "\n";// Now decode it back$decoded = convert_uudecode($encoded);echo "Decoded: " . $decoded . "\n";// Example with binary data$binaryData = file_get_contents('example.png');$encodedBinary = convert_uuencode($binaryData);$decodedBinary = convert_uudecode($encodedBinary);// Verify the decoded binary matches originalif ($binaryData === $decodedBinary) {echo "Binary data decoded successfully!\n";}?>

Output ExampleEncoded: ,2&5L;&\@=V]R;&0`Decoded: Hello, World!Binary data decoded successfully!

Notes1. The function was not deprecated in PHP 8.2 and remains available2. Uuencoding adds about 35% overhead compared to the original data size3. For modern applications, consider using `base64_encode()`/`base64_decode()` instead, as uuencode is an older format4. The function returns false if decoding failsRemember that uuencoding is mostly used for legacy systems, and base64 is generally preferred for modern applications.