PHP 5.5.16 is released

pg_lo_read

(PHP 4 >= 4.2.0, PHP 5)

pg_lo_read从大型对象中读入数据

说明

string pg_lo_read ( resource $large_object , int $len )

pg_lo_read() 从大型对象中读入最多 len 字节的数据并以字符串返回。large_object 指定了有效的大型对象的资源号,len 则指定了大型对象的段所允许的最大长度。如果出错则返回 FALSE

要使用大型对象(lo)接口,需要将其放置在事务块中。

Note:

本函数以前的名字为 pg_loread()

参见 pg_lo_read_all()

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bobahspb at gmail dot com
3 years ago
Be careful: pg_lo_export() create empty file without "begin"/"end".
See docs: "...it is necessary to enclose it within a transaction block..."
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