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Language and development rules: Difference between revisions
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*Usage of PHP superglobals variables must use the dedicated operators $_COOKIES, $_SERVER, $_ENV but use the Dolibarr function GETPOST() to get the contents of $_GET or $_POST.. | *Usage of PHP superglobals variables must use the dedicated operators $_COOKIES, $_SERVER, $_ENV but use the Dolibarr function GETPOST() to get the contents of $_GET or $_POST.. | ||
* Other operators ($HTTP_SERVER_GET, ...) are now deprecated in PHP, so they must not be used. Code must work if option '''register_long_arrays''' is set to off. Moreover, the code must work when PHP option '''register_globals''' is off (recommended by PHP). It must also work the if the option '''register_globals''' is on (by default on a lot of installations). | *Other operators ($HTTP_SERVER_GET, ...) are now deprecated in PHP, so they must not be used. Code must work if option '''register_long_arrays''' is set to off. Moreover, the code must work when PHP option '''register_globals''' is off (recommended by PHP). It must also work the if the option '''register_globals''' is on (by default on a lot of installations). | ||
*Do not use '''<s>PHP_SELF</s>'''. Use instead '''$_SERVER["PHP_SELF"]'''. Also, Dolibarr framework sanitizes content of $_SERVER["PHP_SELF"] variable (into main.inc.php file, before any business code). | *Do not use '''<s>PHP_SELF</s>'''. Use instead '''$_SERVER["PHP_SELF"]'''. Also, Dolibarr framework sanitizes content of $_SERVER["PHP_SELF"] variable (into main.inc.php file, before any business code). | ||
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which is slower. | which is slower. | ||
*Strings must be delimited by a single or double quote and a variable within the string must be outside of the quote. | *'''Strings''' must be delimited by a single or double quote and a variable within the string must be outside of the quote. | ||
<source lang="php"> | <source lang="php"> | ||
print 'My text show my '.$variable.' !'; | print 'My text show my '.$variable.' !'; | ||
</source> | </source> | ||
==== Comments ==== | |||
*Comments must use the C syntax, ie a double slash for a comment on one line and a slash-star to open a bloc for several lines | *Comments must use the C syntax, ie a double slash for a comment on one line and a slash-star to open a bloc for several lines | ||
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} | } | ||
</source> | </source> | ||
<br /> | |||
*Functions must return a value equal or higher than 0 if successful and strictly lower than 0 if error. | *Functions must return a value equal or higher than 0 if successful and strictly lower than 0 if error. | ||