How to turn off php safe mode in .htaccess

I get this error message when uploading images:

Warning (2): copy() [function.copy]: SAFE MODE Restriction in effect.
The script whose uid is 10214 is not allowed to access /usr/local/psa/
home/vhosts/testsite.com/httpdocs/app/webroot/img/Practitioner/338
owned by uid 80 [APP/models/behaviors/image.php, line 307]

This is because safe mode is on. how can I set it off using
a .htaccess file?

Folder permissions are set to 0777
PLEASE HELP, THANKS IN ADVANCE!

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