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Assuming you WANT to combine the string that your php function getUsername() returns with a ':' and the string that the mysql function NOW() returns, you would need to use -

 

$query = "UPDATE posts SET content = '$content', lastedit = CONCAT('". getUsername() .":',NOW()) WHERE id = '$pid'";

 

You should also form your query statements in a php string variable (makes troubleshooting and error reporting easier.) Echo the $query variable so that you can see what portion of it php contributed and what the resulting sql syntax is.

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Assuming you WANT to combine the string that your php function getUsername() returns with a ':' and the string that the mysql function NOW() returns, you would need to use -

 

$query = "UPDATE posts SET content = '$content', lastedit = CONCAT('". getUsername() .":',NOW()) WHERE id = '$pid'";

 

Thank you. I really appreciate the fast response time. :)

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