35 lines
2.3 KiB
Markdown
35 lines
2.3 KiB
Markdown
# PHP pack/unpack reference
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| Code | Description |
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| ---- | ------------------------------------------------------------ |
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| a | NUL-padded string |
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| A | SPACE-padded string |
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| h | Hex string, low nibble first |
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| H | Hex string, high nibble first |
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| c | signed char |
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| C | unsigned char |
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| s | signed short (always 16 bit, machine byte order) |
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| S | unsigned short (always 16 bit, machine byte order) |
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| n | unsigned short (always 16 bit, big endian byte order) |
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| v | unsigned short (always 16 bit, little endian byte order) |
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| i | signed integer (machine dependent size and byte order) |
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| I | unsigned integer (machine dependent size and byte order) |
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| l | signed long (always 32 bit, machine byte order) |
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| L | unsigned long (always 32 bit, machine byte order) |
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| N | unsigned long (always 32 bit, big endian byte order) |
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| V | unsigned long (always 32 bit, little endian byte order) |
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| q | signed long long (always 64 bit, machine byte order) |
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| Q | unsigned long long (always 64 bit, machine byte order) |
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| J | unsigned long long (always 64 bit, big endian byte order) |
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| P | unsigned long long (always 64 bit, little endian byte order) |
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| f | float (machine dependent size and representation) |
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| g | float (machine dependent size, little endian byte order) |
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| G | float (machine dependent size, big endian byte order) |
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| d | double (machine dependent size and representation) |
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| e | double (machine dependent size, little endian byte order) |
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| E | double (machine dependent size, big endian byte order) |
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| x | NUL byte |
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| X | Back up one byte |
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| Z | NUL-terminated (ASCIIZ) string, will be NUL padded |
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| @ | NUL-fill to absolute position |
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