Solve some common problems of dedecms under php7

1. Unable to obtain error information, a blank

A blank cannot be debugged,

So the first thing to do,

Can output error information.

Open include/common.inc.php

Find the following code

//error_reporting(E_ALL);
error_reporting(E_ALL || ~E_NOTICE);

Change it to

error_reporting(E_ALL);
//error_reporting(E_ALL || ~E_NOTICE);

The main function is to open the error prompt.

2. 'continue' not in the 'loop' or 'switch' context error

You may encounter this error after refreshing

Fatal error: ‘continue’ not in the ‘loop’ or ‘switch’ context in ….include/common.func.php on line 49

The above indicates that there is an error in line 49 of the include/common.func.php file.

Delete continue;

and change it to return;

3. The function mysql_query() is undefined

Mysql_* series functions can no longer be used in php7,

the following error will occur

Fatal error: Uncaught Error: Call to undefined function mysql_query() in ….include/dedesql.class.php:152

php7 requires the use of mysqli or pdo to

communicate with the database, which is

safer and more efficient.

Solution

Open the file data/config.cache.inc.php

$cfg_mysql_type = ‘mysql’;

Change to

$cfg_mysql_type = ‘mysqli’;

4. Left side of the background The menu is blank and does not display. Solution

Method 1

Set the data directory permissions to 777 or 755. Note that it is the entire data directory. Just refresh after setting.

Method 2

Enter data/tplcache, make a backup copy, then delete everything except index.html, then set the data/tplcache directory to 777, and refresh it.

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