What are some best practices for handling binary data in PHP to avoid unexpected results or errors?

When handling binary data in PHP, it's important to use functions specifically designed for working with binary data to avoid unexpected results or errors. One common issue is using string functions that are not binary-safe, which can lead to data corruption or incorrect results. To prevent this, use functions like `pack()` and `unpack()` to encode and decode binary data properly. 

// Example of encoding and decoding binary data using pack() and unpack()

// Encode binary data
$binaryData = pack('H*', '48656c6c6f20576f726c64'); // Convert hex string to binary

// Decode binary data
$hexData = bin2hex($binaryData); // Convert binary to hex string
echo $hexData; // Output: 48656c6c6f20576f726c64

Keywords

binary data PHP handling errors unexpected results

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