GunnDawg Posted December 20, 2008 Share Posted December 20, 2008 Alright so I have this lil test project of a message board that I am using to practice writing, and calling data from a mysql db. It all seems to work fine except for one minor lil hitch. If I refresh the page via "browser refresh button" then it adds a blank entry into my table. How would I go about adding a check to the query to say something like "if $_POST[message] >= 0 { echo "no data entered"} return false; I know thats not a proper code, its just me thinking out loud in half english and half php about what I think it would sort of look like But how would I actually do it? Here is my code.... <html> <head> <title>Making a forum for mario</title> </head> <body bgcolor="#666666"> <center> <font size="12" face="comic sans ms" color="black"> Welcome to my Message Board! </font> <br \> <br \> <form name="forum" action="test2.php" method="post"> <textarea name="message" cols="75" rows="10"> Enter your message here... </textarea><br \><br \> <input type="submit" value="Post Message!"> </form </center> <?php $message = $_POST['message']; $user = 'admin'; $pass = 'xxxxx'; $host = 'localhost'; $link = mysql_connect ($host, $user, $pass); if(!$link) { echo "Failed to connect to database"; } else { echo "Connection Established".'<br />'; } mysql_select_db('cdev', $link); $query = "INSERT INTO forum (message) VALUES ('".$message."')"; mysql_query($query) or die ('Error writing message to db!'); echo "Your message was added!".'<br />'.'<br />'; $sql = "SELECT message FROM forum"; $result = mysql_query($sql); while($row = mysql_fetch_array($result)){ echo $row['message'].'<br />'; } ?> Quote Link to comment https://forums.phpfreaks.com/topic/137784-how-to-add-a-text-box-check/ Share on other sites More sharing options...
aseaofflames Posted December 20, 2008 Share Posted December 20, 2008 if(!$_POST['message']) or if(!isset($_POST['message'])) Quote Link to comment https://forums.phpfreaks.com/topic/137784-how-to-add-a-text-box-check/#findComment-720138 Share on other sites More sharing options...
GunnDawg Posted December 20, 2008 Author Share Posted December 20, 2008 Where in my code would I put that to make it execute properly ? Quote Link to comment https://forums.phpfreaks.com/topic/137784-how-to-add-a-text-box-check/#findComment-720139 Share on other sites More sharing options...
GunnDawg Posted December 20, 2008 Author Share Posted December 20, 2008 ? Quote Link to comment https://forums.phpfreaks.com/topic/137784-how-to-add-a-text-box-check/#findComment-720178 Share on other sites More sharing options...
GunnDawg Posted December 20, 2008 Author Share Posted December 20, 2008 Alright so I have this lil test project of a message board that I am using to practice writing, and calling data from a mysql db. It all seems to work fine except for one minor lil hitch. If I refresh the page via "browser refresh button" then it adds a blank entry into my table. How would I go about adding a check to the query to say something like "if $_POST[message] >= 0 { echo "no data entered"} return false; I know thats not a proper code, its just me thinking out loud in half english and half php about what I think it would sort of look like But how would I actually do it? Here is my code.... <html> <head> <title>Making a forum for mario</title> </head> <body bgcolor="#666666"> <center> <font size="12" face="comic sans ms" color="black"> Welcome to my Message Board! </font> <br \> <br \> <form name="forum" action="test2.php" method="post"> <textarea name="message" cols="75" rows="10"> Enter your message here... </textarea><br \><br \> <input type="submit" value="Post Message!"> </form </center> <?php $message = $_POST['message']; $user = 'admin'; $pass = 'xxxxx'; $host = 'localhost'; $link = mysql_connect ($host, $user, $pass); if(!$link) { echo "Failed to connect to database"; } else { echo "Connection Established".'<br />'; } mysql_select_db('cdev', $link); $query = "INSERT INTO forum (message) VALUES ('".$message."')"; mysql_query($query) or die ('Error writing message to db!'); echo "Your message was added!".'<br />'.'<br />'; $sql = "SELECT message FROM forum"; $result = mysql_query($sql); while($row = mysql_fetch_array($result)){ echo $row['message'].'<br />'; } ?> Anyone know where in my code I would add this if statement, and what the rest of the statement would be..? if(!$_POST['message']) Quote Link to comment https://forums.phpfreaks.com/topic/137784-how-to-add-a-text-box-check/#findComment-720212 Share on other sites More sharing options...
aseaofflames Posted December 31, 2008 Share Posted December 31, 2008 sorry, if you want the code not to execute if no check box is set then put it right after the <?php tags and follow it with exit; Quote Link to comment https://forums.phpfreaks.com/topic/137784-how-to-add-a-text-box-check/#findComment-726782 Share on other sites More sharing options...
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