php empty string

PHP: empty - Manual - PHP: Hypertext Preprocessor王子麵的女朋友When using the php empty() function to check submitted variables such as $_POST or $_GET, be careful to remember that values 0 (integer) and "0" (string with zero character) are all considered empty. eg. in a simple cms a page ID of zero might be used to ...

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php - Checking if the string is empty - Stack Overflow不可思議耶~超猛的偷渡客In your if clause in the function, you're referring to a variable 'strTemp' that doesn't exist. '$strTemp' does exist, though. But PHP already have an empty()-function available, why make your own? if (empty($str)) /* String is empty */ else /* Not empty ...

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PHP: Strings - Manual - PHP: Hypertext Preprocessor蒼蠅最壯烈的死法.....Strings A string is series of characters, where a character is the same as a byte. This means that PHP only supports a 256-character set, and hence does not offer native Unicode support. See details of the string type. Note: string can be as large as up t...

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MySQL and PHP - insert NULL rather than empty string - Stack Overflow請問這位車主....你剛剛去了哪裡??Normally, you add regular values to mySQL, from PHP like this: function addValues($val1, $val2) { db_open(); // just some code ot open the DB $query = "INSERT INTO uradmonitor (db_value1, db_value2) VALUES ('$val1', '$val2')"; $result = mysql_query ......

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Oracle/PLSQL: Difference between an empty string and a null value 能一起洗澡泡湯真舒服~~What is the difference between an empty value and a null value? ... Oracle/PLSQL: Difference between an empty string and a null value Question: What is the difference between an "empty" value and a "null" value?...

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