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function isAlphabetNumber($st){ if (ereg('^[a-z|A-Z|0-9]+$', $st)){ return 1; }else{ return 0; } }

way to check wether the session is started including ip logging if( !isset( $_SESSION ) ) { session_start (); } if( isset( $_SESSION [ 'REMOTE_ADDR' ] ) && $_SESSION [ 'REMOTE_ADDR' ] != $_SERVER [ 'REMOTE_ADDR' ] ) { session_regenerate_id (); $_SESSION [ 'REMOTE_ADDR' ] = $_SERVER [ 'REMOTE_ADDR' ]; } if( !isset( $_SESSION [ 'REMOTE_ADDR' ] ) ) { $_SESSION [ 'REMOTE_ADDR' ] = $_SERVER [ 'REMOTE_ADDR' ]; }

function session_started (){ if(isset( $_SESSION )){ return true ; }else{ return false ; } } //Start the output buffer so we dont create any errors with headers ob_start (); //Check to see if it has been started if( session_started ()){ echo 'The session has been started.' ; }else{ echo 'The session has not been started.' ; } //Start the session echo 'Starting Session...' ; session_start (); //Check again if( session_started ()){ echo 'The session has been started.' ; }else{ echo 'The session has not been started.' ; } //Flush the buffer to screen ob_end_flush ();