PHP's serialize is to serialize the variable, returning a string expression with variable type and structure, while JSON is a lighter and friendlier format for interface (AJAX, rest, and so on) data interchange. In fact, both are in a string of ways
So then Lenovo to the object in PHP how to serialize storage cost-effective? Then I thought about the JSON encoding and decoding functions recommended by my colleagues.
According to him, Json_encode and json_decode are more efficient than the
Instructions for use:
Load function
Include_once (' phpcodezip.php ');
Create the encrypted file (SourceDir the php file directory to encrypt, TARGETDIR the encrypted file directory)
$encryption = new Phocodezip (' SourceDir ', ' targetDir
We opened the WinRAR Help file, the Help file mentioned in the command line mode to modify RAR file comments and add compressed documents two parameters are A\c,winrar the description file is as follows:
Add all *.hlp files from the current folder
Overview
About PEAR,PECL These two things, beginner PHP when you know, but it seems to use people rarely add to the previous is also in Windows to do development, so do not know much, now turn to the Mac, the two things thoroughly to find out.
The examples in this article describe how PHP accurately calculates the Easter date. Share to everyone for your reference. as follows:
? PHP function Isleapyear ($nYEAR) {if (($nYEAR% 4 = 0) and! (
$nYEAR% = 0)) and ($nYEAR%!= 0)) {return
This can cause some problems, and some people may inadvertently change a global variable. Global variables in PHP must be declared as global when used in functions (note that the Global keyword is defined in the function to be useful).
The role of 1:
PHP Export Excel Quick Development GuidePhpexcel has proprietary development documentation, please refer to its development documentation for detailed operations, this document is only optimized for its use and is easy to develop quickly in new
This example describes the use of Debug_backtrace, Debug_print_backtrace, and anonymous functions in PHP. Share to everyone for your reference. The specific analysis is as follows:
Debug_print_backtrace () is a very low-key function, and few people
Define section:Macros can be used not only in place of constant values, but also in substitution of expressions or even code snippets. (Macros are powerful, but they are also prone to errors, so the pros and cons are quite controversial.) )
The
The remainder function PHP takes the remainder function PHP two to take over MOD (x,y) x%y
MOD
For example: 9/3,9 is a divisor, 3 is a divisor. The MoD function is a remainder function in the form of:MoD (NEXP1,NEXP2), which is the remainder of
function Createid ($prefix = "")
{
$str = MD5 (Uniqid (Mt_rand (), true);
Return $prefix. $str;
}
uniqid (prefix,more_entropy)
The Uniqid () function generates a unique ID based on the current time in microseconds. Prefix optional. Specify
the difference between 1.preg_match and Preg_match_all
The difference between Preg_match and Preg_match_all is that preg_match only matches once. and Preg_match_all all match until the end of the string. Cases:
String ' ABCDE '
The application of user rights in practical applications what I'm talking about here is a common approach to the rights management approach, which is to use the "bit run" action,& bit and operator, bit, or run character.
If the participating
Save the index.html and upload.php files to the Apache working directory, example using the installation directory D:/program Files/apache Software
AJAX Client page code: index.html
ajax File Upload sample
PHP Server-side code: upload.php
//
Echo!isset (get[′a′]); If the value of variable A is not Echoempty (_get[' a ']); If the value of variable A is null Is_null, empty, isset, unset Let's take a look at the descriptions of these 4 functions first.
Isset determine if a variable
Access stream
All file I/O processing in the PHP user space is handled through the PHP flow wrapper layer introduced in PHP 4.3. Internally, the extension code can optionally use Stdio or POSIX file processing and local file system or Berkeley
A new version of the Zend Studio Server component was released at the same time each time a newer release of Zend Studio was released, making it easy for us to debug remotely. But since Zend released Zend Platform, they are no longer updating the
In industrial control, IoT, intelligence and other projects Modbus-rtu equipment is one of the most common types, it uses rs485/232 bus communication mode, MODBUS-RTU protocol has a long history of mature and reliable. What we're talking about today
3. Submit the CSRF and verification code in the login form, and submit the csrf verification code in the form.
1. submit the form and submit it to this page.
(1) The form attribute method is the post method. Modify the route so that it can receive
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