How to Convert Text to Binary and Back Using PHP?

Convert Text to Binary and Back Using PHP

Storing passwords securely is paramount, and utilizing binary encryption is a valuable tool. This guide demonstrates how to convert strings to binary and back in PHP.

Conversion with pack() and base_convert()

For this conversion task, PHP offers two functions: pack() and base_convert().

To convert a string to binary, use pack('H*', $string). For instance:

<code class="php">$value = unpack('H*', "Stack");
echo base_convert($value[1], 16, 2); // Outputs: 0101001101110100011000010110001101101011</code>

To convert binary to a string, use pack('H*', $binary). For example:

<code class="php">echo pack('H*', base_convert('0101001101110100011000010110001101101011', 2, 16)); // Outputs: Stack</code>

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