{"id":1439,"date":"2015-02-15T01:54:54","date_gmt":"2015-02-15T07:54:54","guid":{"rendered":"http:\/\/blog.supportpro.com\/?p=1439"},"modified":"2026-03-26T23:49:24","modified_gmt":"2026-03-27T05:49:24","slug":"phpmyadmin-error-access-denied-unable-to-establish-a-php-session","status":"publish","type":"post","link":"https:\/\/www.supportpro.com\/blog\/phpmyadmin-error-access-denied-unable-to-establish-a-php-session\/","title":{"rendered":"Fix phpMyAdmin \u201cUnable to Establish a PHP Session\u201d Error in cPanel"},"content":{"rendered":"\n

When accessing phpMyAdmin<\/strong> through cPanel, you may encounter the following error:<\/p>\n\n\n\n

\n

\u201cAccess Denied \u2014 Unable to establish a PHP session. If you believe this is an error, contact your system administrator to review server settings.\u201d<\/strong><\/p>\n<\/blockquote>\n\n\n\n

This issue usually occurs due to incorrect ownership<\/strong> or permissions<\/strong> of the tmp directory<\/strong> inside the cPanel user\u2019s home directory. PHP sessions rely on this directory, and improper configuration prevents phpMyAdmin from creating session files.<\/p>\n\n\n\n

Cause of the Issue<\/h2>\n\n\n\n

Each cPanel account requires a properly configured tmp folder<\/strong> located at:<\/p>\n\n\n\n

\/home\/username\/tmp<\/code><\/pre>\n\n\n\n
If the folder is missing or has incorrect permissions\/ownership, PHP session creation fails, resulting in the phpMyAdmin access error.<\/p>\n\n\n\n
Solution: Fix tmp Folder Permission and Ownership<\/h2>\n\n\n\n
Step 1: Login via SSH<\/h3>\n\n\n\n
Access your server using SSH as the root<\/strong> user.<\/p>\n\n\n\n
ssh root@server-ip<\/code><\/pre>\n\n\n\n
Step 2: Verify tmp Directory<\/h3>\n\n\n\n
Navigate to the user\u2019s home directory:<\/p>\n\n\n\n
cd \/home\/username<\/code><\/pre>\n\n\n\n
Check if the tmp directory exists:<\/p>\n\n\n\n
ls -la | grep tmp<\/code><\/pre>\n\n\n\n
Example incorrect output:<\/p>\n\n\n\n
drwx------ 8 root root 4096 Apr 1 2013 tmp\/<\/code><\/pre>\n\n\n\n
Step 3: Correct Directory Permissions<\/h3>\n\n\n\n
The tmp folder permission should be 755<\/strong>:<\/p>\n\n\n\n
chmod 755 tmp<\/code><\/pre>\n\n\n\n
Step 4: Fix Ownership<\/h3>\n\n\n\n
Set ownership to the correct cPanel username:<\/p>\n\n\n\n
chown username. tmp<\/code><\/pre>\n\n\n\n
If tmp Folder Does Not Exist<\/h2>\n\n\n\n
Create the directory manually and assign proper settings:<\/p>\n\n\n\n
mkdir tmp
chmod 755 tmp
chown username. tmp<\/code><\/pre>\n\n\n\n
Final Result<\/h2>\n\n\n\n
After correcting permissions and ownership, reload phpMyAdmin from cPanel. The PHP session error should now be resolved successfully.<\/p>\n\n\n\n
If you require help, contact SupportPRO Server Admin<\/a><\/a><\/span><\/span><\/p>\n\n\n\n
\n
Facing issues? <\/p>\n\n\n\n
Our technical support
engineers can solve it. <\/p>\n\n\n\n\"Contact<\/a><\/span>