A static variable exists only in a local function field, but its value is not lost when the program executes out of this scope. Take a look at the following example:
Copy Code code as follows:
function Test () {
static $a = 0;
$a + +;
This example tells the PHP realization obtains the picture color value the method, the PHP obtains the picture color value detection picture main color is through the Imagecreatefromjpeg function reads the picture, then circulates obtains each color
A, PHP transaction processing Overview:
Transactions: A collection of several eventstransactions: When all events are executed successfully, the transaction is executed, and if any one of the events fails to execute successfully, the other events
This article describes the Json_encode in PHP to deal with GBK and gb2312 Chinese garbled problem solution, the specific methods are as follows:
1.json_encode () Chinese returns null to Chinese in gbk/gb2312
$arr = Array (
' catid ' => '
PHP variable before add & symbol is not to say more, we are using, is two variables at the same time to point to an address, then, PHP function Plus & symbol of the meaning of what is it? Here are two demo codes before you explain.
function &
For spoofed data submitted from a URL, the following code is first checked from the previous page source:
This method only prevents URLs that are entered manually on the navigation bar.In fact, as long as a link to the URL is
First open the httpd.conf file in the Apache Conf directory and add the following code at the end:
Copy Code code as follows:
ServerName www.mydemo.com
DocumentRoot "D:/mydemo"
Options followsymlinks includesnoexec Indexes
Generally in the Web site system, for optimization considerations such as the need to add articles when the deletion is not a link to this site, for this requirement can be processed by the content of PHP article, to achieve the effect of automatic
Last night, a group of friends to collect Web pages found file_get_contents to get the page saved to the local garbled, the response header Content-encoding:gzip
but it's normal to look in the browser.Because I've had relevant experience
PHP file_get_contents get the remote page content, if it is gzip encoded, the returned string is encoded after the garbled
1, solve the method, find a Ungzip function to convert the next
2, add a prefix to your URL, so call
$content =
In many cases, we've been using skilled code from touching a new project to development and then looking back over the code we wrote. Therefore, in the completion of each new project, appropriate to do some project summary, code summary, perhaps you
1. Written at the frontRecently I wanted to write a simple thing about permission processing, and I learned that using binary digits to perform this task brilliantly. About the binary number of bits, common is "or, and, not" these three simple
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