partial-read

Partial Read (Byte Ranges)

Demonstrates reading specific byte ranges from a file instead of loading the entire content.

What It Covers

• Reading a subset of bytes with read($from, $to)
• $from is the starting byte position (inclusive)
• $to is the ending byte position (exclusive)
• Calling read() with no arguments reads the entire file
• Throws FileException if the requested range exceeds the file size

Use Cases

• Resumable downloads
• Reading headers from large binary files
• Sampling content without loading everything into memory

Key Methods

• File::read(int $from = -1, int $to = -1) — When both default to -1, reads the full file. Otherwise reads bytes from $from up to $to.

Run

php examples/partial-read.php