![]() ![]() mysql_query("INSERT INTO users (first, last, whenadded) VALUES ('$first', '$last', now())" This is probably a syntax error, but it's driving me crazy, so I am posting it. When I try to insert the date time using the SQL statement, however, the field does not populate with the current time/date, but it only gives me the default 0000-00-, etc. (People seem to think timestamp with curdate() is not the answer due to the various limitations of timestamp.) There are numerous articles on the web suggesting inserting now() using SQL should work. If the original statement template is not derived from external input, SQL injection cannot occur.Since MySQL evidently cannot automatically insert the function now() in a datetime field in adding new records like some other databases, based on comments, I'm explicitly trying to insert it using an SQL statement. Prepared statements are very useful against SQL injections, because parameter values, which are transmitted later using a different protocol, need not be correctly escaped.Bound parameters minimize bandwidth to the server as you need send only the parameters each time, and not the whole query.Prepared statements reduce parsing time as the preparation on the query is done only once (although the statement is executed multiple times).The application may execute the statement as many times as it wants with different valuesĬompared to executing SQL statements directly, prepared statements have three main advantages: Execute: At a later time, the application binds the values to the parameters, and the database executes the statement.The database parses, compiles, and performs query optimization on the SQL statement template, and stores the result without executing it. ![]() Example: INSERT INTO MyGuests VALUES(?, ?, ?) Certain values are left unspecified, called parameters (labeled "?"). Prepare: An SQL statement template is created and sent to the database.Prepared statements basically work like this: Statements repeatedly with high efficiency. Prepared statements are very useful against SQL injections.Ī prepared statement is a feature used to execute the same (or similar) SQL ![]() PHP Examples PHP Examples PHP Compiler PHP Quiz PHP Exercises PHP Certificate PHP - AJAX AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll PHP XML PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM MySQL Database MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data PHP OOP PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Interfaces PHP Traits PHP Static Methods PHP Static Properties PHP Namespaces PHP Iterables PHP Advanced PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP Exceptions PHP Forms PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete Superglobals $GLOBALS $_SERVER $_REQUEST $_POST $_GET PHP RegEx
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