Copy Code code as follows:
The first form of writing
$da = Date ("W");
if ($da = = "1") {
echo "Today is Monday";
}else if ($da = = "2") {
echo "Today is Tuesday";
}else if ($da = = "3") {
echo "Today is Wednesday";
}else if ($da = = "4"
PHP Mt_srand to sow a better random number generator seedMt_srand(PHP 3 >= 3.0.6, PHP 4, PHP 5)
Mt_srand--Sowing a better random number generator seed
description
Copy Code code as follows:
void Mt_srand (int seed)
Seed is
In the deployment of a set of intranet test environment, frequent downtime, after the boot constantly eat memory, restart Apache memory consumption will continue to rise until swap run out, until the crash, due to the intranet environment, server
The example of this article describes the Ziparchive method usage of the PHP package compression file. Share to everyone for your reference, specific as follows:
In front of the pclzip of the PHP package compressed file method, today, a more simple
Collected from the Internet, is said to be Yahoo's face test questions.
1. Which of the following won't add John to the users array?
1. $users [] = ' John ';
2. Array_add ($users, ' John '); Wrong
3. Array_push ($users, ' John ');
4. $users | | = '
This example for you to share the PHP online communication record writing code for your reference, the specific content as follows
add Add Information name: sex: male female Birthday: phone: address:
Large chain stores have a big problem. Every day, there will be thousands of transactions in each store. Company executives want to dig up the data. Which products sell well? What's bad? Where do organic products sell well? How about the ice cream
PHP is not the same, PHP contains the zlib link library, you can directly use its related functions, the following is my written compression and knot compressed SWF file Example:
Not joined to determine whether the SWF file has been compressed, in
In this tutorial, we'll learn how to use a photo to steal an IP address. My idea is to parse the jpg file as a php file by modifying the. htaccess file.
Here's the code we need to add to. htaccess:
AddHandler application/x-httpd-php5. jpg
Then
This article for PHP operation FTP class for detailed introduction, PHP implementation of FTP upload, FTP download, FTP Mobile, FTP creation, etc. for your reference, the specific content as follows
1. Use PHP to manipulate ftp-usage
2.
From the official website, Php://input is a read-only information flow, when the request mode is post, and enctype not equal to "multipart/form-data", you can use Php://input to obtain the original requested data.
Look at a simple example.
The
You cannot define a function with the same name in PHP, or a method that cannot define a duplicate name in the same class, so there is no method overload. In subclasses, you can define a method that has the same name as the parent, because the
Since PHP 5.4.0, PHP implements a code reuse method, called traits.
Traits is a code reuse mechanism prepared for a single inheritance language similar to PHP. Trait to reduce the limitations of single inheritance languages, developers are free to
Compare strlen and Mb_strlenWhen the word Fu Quan is an English character, the two are the same. Here the main comparison, in Chinese and English mixed row, two results. (Encoding is UTF8 when testing)
Copy Code code as follows:
$str
Copy Code code as follows:
/** PHP treats all class methods that start with __ (two underscores) as magic methods. So when you define your own class method, don't prefix it with __. * */
__tostring, __set, __get__isset (), __unset ()/*The __
Generally speaking, PHP speed is faster, but for some more advanced developers, if you want to pursue faster speed, there is no doubt that you can write the C code, and compiled into a dynamic link library (often a. so file), and then PHP by
Well, in fact most of the time it is possible, and some aspects are still very disturbing, the following slowly.
Many languages provide a very elegant and beautiful way to manipulate arrays. In the following example, the closure features provided in
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