This article describes the use of Strtolower and Strtoupper in PHP for case conversion functions, which are often encountered in character handling issues. If you need a friend, refer to it.1, convert the string to the lowercase strtolower function:
Usage of php case-sensitive conversion functions (strtolower and strtoupper)
This article describes the usage of the case-sensitive conversion functions strtolower and strtoupper in php, which are frequently encountered in character
[PHP source code reading] in strtolower and strtoupper function string operation functions, string case-sensitivity conversion is also a commonly used function, and its underlying implementation is relatively simple. let's take a look at it.
I
PHP strtolower Letter Convert Lowercase
String Strtolower (String $str)Returns all alphabetic characters that are converted to lowercase by a string.
Please note that the ' letter ' is determined by the current locale. This means that, as with
This article mainly introduces about the PHP source two: About Strlen, Strtolower, Strtoupper, Ord, Chr function, has a certain reference value, now share to everyone, there is a need for friends can refer to
int strlen (String string)Returns the
1. Microtime ()Returns the contents of this format for microsecond secondsExample Output: 0.25139300 1138197510//Front is the microsecond section, but the unit is seconds. Back is the second.2. Memory_get_usageReturns the memory consumed by PHP in
As the name implies, loaders are loaded elements, when using CI, often loaded with:
$this->load->library ()$this->load->view ()$this->load->model ()$this->load->database ()$this->load->helper ()$this->load->config ()$this->load->add_package_path ()
function | User Management
$hidden _hash_var= ' Your_password_here ';
$LOGGED _in=false;
Clear it out in case someone sets it in the URL or something
unset ($LOGGED _in);
/*
CREATE TABLE User (
user_id int NOT NULL Auto_increment primary
The THINKPHP website logon page can be used for normal logon in the local test, but cannot be redirected to the server. Why can I log on to the logon page in the local test but cannot be redirected to the server?
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Server "Summary"
The most basic form of LDAP is a standard way to connect to a database. The database is optimized for read queries. So it can get the results of the query quickly, but in other ways, such as updates, it's much slower.
This article
This article demonstrates how to use PHP to connect to an LDAP server. A specific example is to connect to a common LDAP server and search. This example simulates the Netscape Communicator 4.*, which connects to the LDAP resource through its own
With the popularity of mobile devices, the site will also usher in more and more mobile devices access. Used to adapt to the PC page, often unfriendly to mobile phone users, then sometimes, we need to determine whether the user to access the phone,
This article mainly introduces the XML operation (read) encapsulation class implemented by php, and provides an xml format file example, combined with the complete instance form, This article analyzes the related operation skills for php to traverse
For help, this code burst into an error .. PHPcodefunctionMU ($ url, $ type, $ varsarray (), $ domainfalse) {$ pathexplode (& quot;, trim ($ url, & quot; & quot;); $ modelstrtolower for help, this code burst into an error ..
PHP code
For help, this code burst into an error .. PHPcodefunctionMU ($ url, $ type, $ vars = array (), $ domain = false) {$ path = explode (& quot;/& quot;, tri for help, this code burst into an error ..
PHP code
function MU( $url, $type, $vars =
CI framework source code reading Note 4 guide file CodeIgniter. php is here, and finally enters the core of the CI framework. Since it is a "pilot" file, it is to guide user requests, parameters, and so on, so that user requests and data streams are
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