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PHP5中文手册
gzseek(PHP 4, PHP 5) gzseek — Seek on a gz-file pointer 说明
int gzseek
( resource $zp
, int $offset
)
Sets the file position indicator for the given file pointer to the given offset byte into the file stream. Equivalent to calling (in C) gzseek(zp, offset, SEEK_SET). If the file is opened for reading, this function is emulated but can be extremely slow. If the file is opened for writing, only forward seeks are supported; gzseek() then compresses a sequence of zeroes up to the new starting position. 参数
返回值Upon success, returns 0; otherwise, returns -1. Note that seeking past EOF is not considered an error. 范例
Example#1 gzseek() example
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