我无法使用php写入Mysql表。使用mysql客户端的本机命令行有效。但我可以在所有变种中做出“选择” - 看起来像是一个许可问题，但是什么样的？ mysql凭据是相同的
我从存储库中安装了Apache，PHP和Mysql的全新Debian 7.6。 PHP很特别，我的应用程序需要PHP 5.3。 （原来7.6回购只有PHP 5.4）。所以我按照this answer中的建议安装了PHP。
已安装的软件包：
root@{servername}:/var/www# dpkg -l | grep php
ii libapache2-mod-php5 5.3.3-7+squeeze19 amd64 server-side, HTML-embedded scripting language (Apache 2 module)
ii php5 5.3.3-7+squeeze19 all server-side, HTML-embedded scripting language (metapackage)
ii php5-cli 5.3.3-7+squeeze19 amd64 command-line interpreter for the php5 scripting language
ii php5-common 5.3.3-7+squeeze19 amd64 Common files for packages built from the php5 source
ii php5-curl 5.3.3-7+squeeze19 amd64 CURL module for php5
ii php5-gd 5.3.3-7+squeeze19 amd64 GD module for php5
ii php5-mysql 5.3.3-7+squeeze19 amd64 MySQL module for php5
ii php5-suhosin 0.9.32.1-1 amd64 advanced protection module for php5
ii php5-xmlrpc 5.3.3-7+squeeze19 amd64 XML-RPC module for php5
root@{servername}:/var/www# dpkg -l | grep mysql
ii libdbd-mysql-perl 4.021-1+b1 amd64 Perl5 database interface to the MySQL database
ii libmysqlclient16 5.1.73-1 amd64 MySQL database client library
ii libmysqlclient18:amd64 5.5.38-0+wheezy1 amd64 MySQL database client library
ii mysql-client 5.5.38-0+wheezy1 all MySQL database client (metapackage depending on the latest version)
ii mysql-client-5.5 5.5.38-0+wheezy1 amd64 MySQL database client binaries
ii mysql-common 5.5.38-0+wheezy1 all MySQL database common files, e.g. /etc/mysql/my.cnf
ii mysql-server 5.5.38-0+wheezy1 all MySQL database server (metapackage depending on the latest version)
ii mysql-server-5.5 5.5.38-0+wheezy1 amd64 MySQL database server binaries and system database setup
ii mysql-server-core-5.5 5.5.38-0+wheezy1 amd64 MySQL database server binaries
ii php5-mysql 5.3.3-7+squeeze19 amd64 MySQL module for php5
root@{servername}:/var/www# dpkg -l | grep apache
ii apache2-mpm-prefork 2.2.22-13+deb7u3 amd64 Apache HTTP Server - traditional non-threaded model
ii apache2-utils 2.2.22-13+deb7u3 amd64 utility programs for webservers
ii apache2.2-bin 2.2.22-13+deb7u3 amd64 Apache HTTP Server common binary files
ii apache2.2-common 2.2.22-13+deb7u3 amd64 Apache HTTP Server common files
ii libapache-pom-java 10-2 all Maven metadata for all Apache Software projects
ii libapache2-mod-dnssd 0.6-3 amd64 Zeroconf support for Apache 2 via avahi
ii libapache2-mod-php5 5.3.3-7+squeeze19 amd64 server-side, HTML-embedded scripting language (Apache 2 module)
我的PHP测试脚本：
root@{servername}:/var/www# cat testscript.php
<?php
ini_set('display_errors', 'on');
error_reporting('E_ALL');
$db = mysql_connect('localhost', '{applicationname}', '{password}');
mysql_select_db('{applicationname}');
$result = mysql_fetch_assoc(mysql_query('SELECT * from clients'));
print_r($result);
echo "\n\n";
$code = mysql_query("INSERT INTO clients VALUES ('2', 'TestEntry', 'Test xy', 0)");
$result = mysql_fetch_assoc(mysql_query('SELECT * from clients'));
print_r($result); print_r($code);
print mysql_error(); echo "\n\n";
$code = mysql_query("DELETE FROM clients where ClientID = 2");
$result = mysql_fetch_assoc(mysql_query('SELECT * from clients'));
print_r($result); print_r($code);
print mysql_error(); echo "\n\n";
原生mysql-client测试
mysql> use {applicationname}
Database changed
mysql> select * from clients;
+----------+------------+-------------------+--------------+
| ClientID | ClientName | ClientDescription | ParentClient |
+----------+------------+-------------------+--------------+
| 1 | CPN | Company Name | 0 |
+----------+------------+-------------------+--------------+
1 row in set (0.00 sec)
mysql> INSERT INTO clients VALUES ('2', 'TestEntry', 'Test xy', 0);
Query OK, 1 row affected (0.00 sec)
mysql> select * from clients;
+----------+------------+-------------------+--------------+
| ClientID | ClientName | ClientDescription | ParentClient |
+----------+------------+-------------------+--------------+
| 1 | CPN | Company Name | 0 |
| 2 | TestEntry | Test xy | 0 |
+----------+------------+-------------------+--------------+
2 rows in set (0.00 sec)
mysql> delete from clients where ClientID=2;
Query OK, 1 row affected (0.00 sec)
mysql> select * from clients;
+----------+------------+-------------------+--------------+
| ClientID | ClientName | ClientDescription | ParentClient |
+----------+------------+-------------------+--------------+
| 1 | CPN | Company Name | 0 |
+----------+------------+-------------------+--------------+
1 row in set (0.00 sec)
我的测试文件的输出
root@{servername}:/var/www# php testscript.php
Array
(
[ClientID] => 1
[ClientName] => CPN
[ClientDescription] => Company Name
[ParentClient] => 0
)
Array
(
[ClientID] => 1
[ClientName] => CPN
[ClientDescription] => Company Name
[ParentClient] => 0
)
1
Array
(
[ClientID] => 1
[ClientName] => CPN
[ClientDescription] => Company Name
[ParentClient] => 0
)
1
假设没有发生错误，PHP不会在mysql_error（）中抛出任何错误。从mysql_query（）返回代码也没问题。必须有类似服务器级权限应用程序的东西。
这个debian是否启用了apparmor或selinux？我找不到/ selinux / setenforce（没有文件）
我应该查看哪些日志？ / var / www / mysql *全是空的。
答案 0 :(得分：0)
您发布的代码有点循环......您可以尝试以下内容吗？您的PHP测试似乎表明INSERT和DELETE 都有效（EG：print_r(true) == 1）。
ini_set('display_errors', 'on');
error_reporting('E_ALL');
$db = mysql_connect('localhost', '{applicationname}', '{password}');
mysql_select_db('{applicationname}');
echo "--Initial Select\n--";
$result = mysql_fetch_assoc(mysql_query('SELECT * from clients'));
var_dump($result);
echo "--Initial Insert\n--";
$code = mysql_query("INSERT INTO clients VALUES ('2', 'TestEntry', 'Test xy', 0)");
var_dump($code);
var_dump(mysql_error());
echo "--Select after Insert\n--";
$result = mysql_fetch_assoc(mysql_query('SELECT * from clients'));
var_dump($result);
echo "--Delete\n--";
$code = mysql_query("DELETE FROM clients where ClientID = 2");
var_dump($code);
var_dump(mysql_error());
echo "--select after deletion--\n";
$result = mysql_fetch_assoc(mysql_query('SELECT * from clients'));
var_dump($result);