OCI-Lob::read()

(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)

Reads part of the large object

说明

OCI-Lob::read(int $length): string

Reads$lengthbytes from the current position of LOB's internal pointer.

Reading stops when$lengthbytes have been read or end of the large object is reached. Internal pointer of the large object will be shifted on the amount of bytes read.

参数

$length

The length of data to read, in bytes. Large values will be rounded down to 1 MB.

返回值

Returns the contents as a string,或者在失败时返回FALSE.

参见

• OCI-Lob::load
• OCI-Lob::write

To read LOB into variable you can use OCI-Lob::load
<?php
$foo = $MyBlob->load();
?>

To read the whole LOB into a variable:
<?php
$foo = $MyBlob->read($MyBlob->size());
?>