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Php judges that an array is null if (! Array (), or if (empty (array ()))? Php judges that an array is null if (! Array (), or if (empty (array ()))? Reply content: php determines if (! Array (), or if (empty (array ()))? First habitually, RTFM No,

PHP determines if an array is empty if (!array ()) Good, or if (empty (array ()))? Reply content: PHP determines if an array is empty if (!array ()) Good, or if (empty (array ()))? First, habitually, RTFM. No, it's not right. !empty()What's

There is often confusion during encoding. to judge whether a variable is not empty, use the method 1: if ($ args) {... dosomething...} Method 2: if (! Empty ($ args) {... dosomething...} has the same effect on execution efficiency? Thank you for

There is often a confusion when coding, judging a variable is not NULL: Way 1:if ($args) {... do something ...} Way 2:if (!empty ($args)) {...} do something ...} Do the two approaches work the same way, and what's better in execution

ID Realname SEX1 10082 Pine XX2 10084 Lam xx 13 10087 West XX4 10100 hu xx5 10102 Dragon xx 1Usage ============Select U.id,u.realname,(Case U.sexWhen 1 Then ' Male 'When 2 ThenFemaleElse ' empty 'END) genderfrom Users u;====In the second case, if

Php generates pseudo-static code. Does that guy generate php pseudo-static code? Let me see. Thank you! this is the pseudo-static generation code PHPcode/*** rewrite URL address of ecshop ** @ accesspublic * @ paramstring $ app execution program * @

Class Rssgenerator_rss{var $rss _version = ' 2.0 ';var $encoding = ';var $stylesheet = '; function CData ($STR){Return ' ';} function Createfeed ($channel){$SELFURL = (!isset ($_server[' https ') | | | | $_server[' HTTPS ']!= ' on '? ' http://': '

Demo Code Operation effect (Figure 1) Operation effect (Figure 2) Main Package function Multi_process ();According to the parameters, create the number of pointers to the child process.Bright spot Function 1: The

The code is as follows: --ACL Tables --The structure of the table ' Aclresources ' DROP TABLE IF EXISTS ' aclresources '; CREATE TABLE IF not EXISTS ' aclresources ' ( ' Rsid ' varchar (+) not NULL, ' Access ' int (4) is not NULL for default 0, '

The simple ACL code in php is as follows: -- ACL Tables -- Table structure 'aclresources' Drop table if exists 'aclresources '; Create table if not exists 'aclresources '( 'Rsid 'varchar (64) not null, 'Access' int (4) not null default 0, 'Desc'

Finally, I have finished a simple implementation. For more information about php learning, see. Copy codeThe code is as follows: -- ACL Tables -- Table structure 'aclresources' Drop table if exists 'aclresources '; Create table if not exists

Copy CodeThe code is as follows: --ACL Tables --The structure of the table ' Aclresources ' DROP TABLE IF EXISTS ' aclresources '; CREATE TABLE IF not EXISTS ' aclresources ' ( ' Rsid ' varchar (+) not NULL, ' Access ' int (4) is not NULL for

Copy Code code as follows: --ACL Tables --The structure of the table ' Aclresources ' DROP TABLE IF EXISTS ' aclresources '; CREATE TABLE IF not EXISTS ' aclresources ' ( ' rsid ' varchar not NULL, ' Access ' int (4) not NULL default 0, '

Some special characters in php are usually used to filter secure data submission or sensitive words. The following describes some common examples for your reference. Some special characters in php are usually used to filter secure data submission or

ExampleWe use preg_replace and str_ireplace to replace The code is as follows:Copy code Public static function filterStr ($ value){If (empty ($ value )){Return "";}$ Value = trim ($ value );$ Badstr = array ("x00", "% 00", "r", "&", "," '"," ",

MVC is the abbreviation of Model, View, and Controller. the purpose of MVC mode in PHP is to achieve the division of functions of the Web system, in general, business logic processing is separated from the user interface view. It makes the

Make Web system development and maintenance more convenient, thereby effectively save manpower and material resources, by more and more enterprises of the green. Template engine is an important method of the MVC pattern building process, the

/* * Class: Template parsing Class * AUTHOR:51JS.COM-ZMM * date:2011.3.1 * email:304924248@qq.com * blog:http://www.cnblogs.com/cnzmm/ * link:http://bbs.it-home.org */ Class Template { Public $html, $vars,

Make Web system development and maintenance more convenient, thereby effectively save manpower and material resources, by more and more enterprises of the green. Template engine is an important method of the MVC pattern building process, the

I have a php record to check whether there is a more concise way of writing, or you can use other methods to implement {code ...} there is a php judge to see if there is a more concise writing method, or other methods can be implemented. $cat_id = 0