Bài đăng

Đang hiển thị bài đăng từ tháng 1 27, 2008

Kiểm tra là 1 xâu là chỉ gồm chữ hoặc số in JAVASCRIPT

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

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' ]; }

ways of checking if a session is active

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 ();