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Doc Bug #77031 ATTR_EMULATE_PREPARES and multiquery
Submitted: 2018-10-18 09:48 UTC Modified: 2021-07-06 17:04 UTC
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: giolaza at gmail dot com Assigned:
Status: Open Package: PDO MySQL
PHP Version: 7.2.11 OS: Windows, Linux
Private report: No CVE-ID: None
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From: giolaza at gmail dot com
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 [2018-10-18 09:48 UTC] giolaza at gmail dot com
PDO::ATTR_EMULATE_PREPARES and connect->quety('UPDATE 1 SLQ; UPDATE 2 SQL') problem

Test script:
$q2[]='UPDATE `users` set `has_trialPeriod`=0,`last_changedBalance`=1539846901 where id=1';
$q2[]='UPDATE `users` set `balance_usd`=(`balance_usd`-99990000) where id=1';
$q=implode(';', $q2);


got err

Actual result:


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 [2021-07-06 17:04 UTC]
-Type: Bug +Type: Documentation Problem
 [2021-07-06 17:04 UTC]
PDO::query() is a shortcut for PDO::prepare() and PDO::execute().
mysql_prepare() only supports a single statement[1]; that's why
you're getting an error.  Emulated prepares, on the other hand,
don't mind multiple statements (unless
PDO::MYSQL_ATTR_MULTI_STATEMENTS => false), so this works.

I think we should document this.

[1] <>
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Last updated: Sun Jun 26 02:05:44 2022 UTC