shmop_read
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
shmop_read — Read data from shared memory block
説明
string shmop_read
( resource
$shmid
, int $start
, int $count
)shmop_read() will read a string from shared memory block.
パラメータ
-
shmid -
The shared memory block identifier created by shmop_open()
-
start -
Offset from which to start reading
-
count -
The number of bytes to read
返り値
Returns the data失敗した場合に FALSE を返します.
例
例1 Reading shared memory block
<?php
$shm_data = shmop_read($shm_id, 0, 50);
?>
This example will read 50 bytes from shared memory block and place the data inside $shm_data.
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