flobeats 0 Report post Posted May 30, 2007 Vreau sa fac o pagina demo in care sa simulez citirea temperaturii din o camera. Eu vreau sa fac aceasta citire din un fisier. In fisierul respectiv scriu datele manual: 18 grade celsius sau doar 18 19 20 18 20 ..etc As vrea sa afisez aceste date pe rand in pagina la un anumit interval de timp.Prima data 18, dupa 30 sec 19, dupa 30 sec, 20, s.a.m.d. Am un script care imi da o eroare de sintaxa, si care sper sa am ajute in problema asta:Parse error: syntax error, unexpected T_VARIABLE in C:\xampp\htdocs\licenta\mysql1.php on line 3 <?php session_start(); if( (!isset($_SESSION['cnt']) $_SESSION['cnt'] = 0) ); $file = file_get_contents('fisier.txt'); $file = explode("\n",$file); if( $_SESSION['cnt'] >= count($file) ){ $val = 'S-a citit ultima valoare'; } else { $val = trim($file[$_SESSION['cnt']); $_SESSION['cnt']++; } Multumesc Share this post Link to post Share on other sites
argv 4 Report post Posted May 30, 2007 (edited) Incearca if (!isset($_SESSION['cnt'])) $_SESSION['cnt'] = 0; Mai sunt si alte greseli de sintaxa, verifica parantezele. Pentru o citire mai usoara aliniaza codul frumos si foloseste-te de spatii; sunt mai usor de identificat erorile daca respecti anumite reguli de codare.. <?php session_start(); if (!isset($_SESSION['cnt'])) $_SESSION['cnt'] = 0; $file = file_get_contents('fisier.txt'); $file = explode("\n", $file); if ($_SESSION['cnt'] >= count($file)) { $val = 'S-a citit ultima valoare'; } else { $val = trim($file[$_SESSION['cnt']]); $_SESSION['cnt']++; } Edited May 30, 2007 by Argv Share this post Link to post Share on other sites
flobeats 0 Report post Posted May 30, 2007 Mai sunt si alte greseli de sintaxa, verifica parantezele. Pentru o citire mai usoara aliniaza codul frumos si foloseste-te de spatii; sunt mai usor de identificat erorile daca respecti anumite reguli de codare..[ Multumesc, ai dreptate..dar avand in vedere ca am vazut cod php pt prima data in viata mea acum 2 saptamani, trebuie sa ma intelegi :P Share this post Link to post Share on other sites
flobeats 0 Report post Posted May 30, 2007 <?php session_start(); if (!isset ( $_SESSION ['cnt'])) $_SESSION ['cnt'] = 0; $file = file_get_contents ('fisier.txt'); $file = explode ("\n",$file); if( $_SESSION ['cnt'] >= count ($file) ) { $val = 'Readed'; } else { $val = trim ($file ($_SESSION['cnt'])); $_SESSION ['cnt']++; } Codul meu arata asa acum, dar tot primesc o eroare la linia bolduita: Fatal error: Function name must be a string in C:\xampp\htdocs\licenta\mysql1.php on line 12. Multumesc. :jester: Share this post Link to post Share on other sites
argv 4 Report post Posted May 30, 2007 incearca sa scoti trim-ul ala sa vezi ce afiseaza Share this post Link to post Share on other sites
flobeats 0 Report post Posted May 30, 2007 <?php session_start(); if (!isset ( $_SESSION ['cnt'])) $_SESSION ['cnt'] = 0; $file = file_get_contents ('fisier.txt'); $file = explode ("\n",$file); if( $_SESSION ['cnt'] >= count ($file) ) { $val = 'Readed'; } else { $val = $file[$_SESSION['cnt']]; $_SESSION ['cnt']++; echo $val; } Am scos trim din linie, mi a aratat ultimele 3 valori din fisier, apoi nu mi a mai aratat nimic nu imi da nici o eroare, dar nici nu face nimic. Nu stiu ce sa i fac. Pls help. Mersi. Share this post Link to post Share on other sites
argv 4 Report post Posted May 30, 2007 Ar trebui sa modifici asa: if( $_SESSION ['cnt'] >= count ($file) ) { $val = 'Readed'; } else { $val = $file[$_SESSION['cnt']]; $_SESSION ['cnt']++; echo $val; } echo $val; Share this post Link to post Share on other sites
flobeats 0 Report post Posted May 30, 2007 Asta este codul: <html> <head> <meta http-equiv="refresh" content="10" /> </head> <body> <?php session_start(); if (!isset ( $_SESSION ['cnt'])) $_SESSION ['cnt'] = 0; $file = file_get_contents ('fisier.txt'); $file = explode ("\n",$file); if( $_SESSION ['cnt'] >= count ($file) ) { $val = 'Readed'; } else { $val = (trim ($file[$_SESSION['cnt']])); $_SESSION ['cnt']++; } ?> Temperatura: <?php echo $val; ?> </body> </html> Daca il rulez pe server imi afiseaza prima valoare din fisier.txt "Temperatura =20" si eroarea de mai jos: Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\licenta\zzz.php:10) in C:\xampp\htdocs\licenta\zzz.php on line 11 Temperatura: 20 Daca iau doar codul php si il pun in o pag php vad ca functioneaza. Ai idee care ar fi problema? Multumesc. Share this post Link to post Share on other sites
argv 4 Report post Posted May 30, 2007 (edited) N-am lucrat de mult cu php si web, dar incearca sa modifici sa faci SessionStart inainte de <head> sau chiar inainte de <html>... Incearca ambele variante <html> <?php session_start(); ?> <head> <meta http-equiv="refresh" content="10" /> </head> <body> <?php if (!isset ( $_SESSION ['cnt'])) $_SESSION ['cnt'] = 0; $file = file_get_contents ('fisier.txt'); $file = explode ("\n",$file); if( $_SESSION ['cnt'] >= count ($file) ) { $val = 'Readed'; } else { $val = (trim ($file[$_SESSION['cnt']])); $_SESSION ['cnt']++; } ?> Temperatura: <?php echo $val; ?> </body> </html> Pentru refresh poti folosi si functia header. De ex: header('Refresh: 3; url=index.html'); Edited May 30, 2007 by Argv Share this post Link to post Share on other sites
flobeats 0 Report post Posted May 30, 2007 (edited) Identic..aceeasi eroare. Mai intreb, multumesc pt. timpul acordat. Edited May 30, 2007 by flobeats Share this post Link to post Share on other sites
