mysql_xdevapi\TableSelect
PHP Manual

TableSelect::lockShared

(No version information available, might only be in Git)

TableSelect::lockSharedExecute SHARED LOCK

Description

public mysql_xdevapi\TableSelect mysql_xdevapi\TableSelect::lockShared ([ integer $lock_waiting_option ] )

Execute a read operation with SHARED LOCK. Only one lock can be active at a time.

Parameters

lock_waiting_option

The optional waiting option that defaults to MYSQLX_LOCK_DEFAULT. Valid values are:

  • MYSQLX_LOCK_DEFAULT

  • MYSQLX_LOCK_NOWAIT

  • MYSQLX_LOCK_SKIP_LOCKED

Return Values

A TableSelect object.

Examples

Example #1 mysql_xdevapi\TableSelect::lockShared() example

<?php
$session 
mysql_xdevapi\getSession("mysqlx://user:password@localhost");

$schema $session->getSchema("addressbook");
$table  $schema->getTable("names");

$session->startTransaction();

$result $table->select('name''age')
  ->
lockShared(MYSQLX_LOCK_NOWAIT)
  ->
execute();

$session->commit();

$row $result->fetchAll();
print_r($row);
?>

The above example will output something similar to:

Array
(
    [0] => Array
        (
            [name] => John
            [age] => 42
        )
    [1] => Array
        (
            [name] => Sam
            [age] => 42
        )
)

mysql_xdevapi\TableSelect
PHP Manual