PHP Tutorials

In the work need to deal with multi-lingual translation problems, translation is written in the Excel table. I will keep both the Chinese and English columns for the convenience of processing. This requires that the data be taken out of Excel, and

Copy CodeThe code is as follows: /** * Remove HTML tags * * @access Public * @param string str * @return String * */ function deletehtml ($STR) { $str = Trim ($STR); Clear spaces on both sides of a string $str = Strip_tags ($str, " "); Use PHP's own

Brief introduction:Ajax is made up of HTML, javascript™ technology, DHTML, and DOM, an excellent way to turn a clumsy web interface into an interactive Ajax application. For Ajax, one of the core objects is XMLHttpRequest, and all AJAX operations

1, the basic principle of PHP injectionProgrammer's level and experience are also uneven, a large part of the programmer in writing code, the user does not judge the legality of input data, so that the application has a security risk. The user can

First, close the default_charset in PHP config file php.ini: 1. Page does not specify CharSet, Apache configuration defaultcharst GBK, page file encoding is Utf-8Result: garbled, using Wireshark to grab the packet, found that the server returned

Maybe you know, maybe you don't know that PHP is a weak type, dynamic scripting language. The so-called weak type, that is, PHP does not strictly verify the variable type (strictly speaking, PHP is a medium-strong type language, this part will be

A few days ago began to run a data list, list needs to provide user name, whether there is a mobile phone number, whether there is a mailbox, user list I easily get to, but, the user list has more than 2000w, and to detect whether the user has a

1. Using file_get_contents () Copy CodeThe code is as follows: $file = file_get_contents ($url); echo strlen ($file); ?> 2. Using Get_headers () Copy CodeThe code is as follows: $header _array = Get_headers ($url, true); $size = $header _array['

Test the OB cache and program cache below:In order to test the results more clearly before testing, we php.ini the OB cache and set a clear level of error. Output_buffering=offDisplay_errors=on Code Listing 1: The code is as follows: echo "PHP";

Let's start with an example:For example, you'll get a function that returns these kinds of situations: 1, more than 0 of the number 2, less than 0 of the number 3, equals 0 of the number (that is, 0) 4, False (On Failure) At this time if you want to

For PHP references (that is, variables or functions, objects, etc., preceded by the & symbol), let's look at the following procedure. Copy CodeThe code is as follows: $a = 100; Declaring variable A $b = & $a; Declaring variable B, referring to

is not accustomed to the variable scope in PHP, PHP function variables and the global is completely isolated, that is, cannot access each other. such as the following: Copy CodeThe code is as follows: $test = 123; ABC (); Nothing is output here,

Copy CodeThe code is as follows: Echo ' abc '. Def '; Concatenate strings with dot numbers Echo ' abc ', ' Def '; Concatenate strings with commas So here are some examples. To identify the difference between them. Copy CodeThe code is as

0. It is quicker to use single quotes instead of double quotes to contain strings. Because PHP will search for variables in a string surrounded by double quotes, single quotes will not, note: only echo can do this, it is a string can be used as a

Some of these PHP concepts are just beginning to be difficult to understand, I have listed them, hoping to help some people, on the way forward less thorns. 1. Variable variables (variable variable) variable_variables.php Copy the Code code as

There are many load balancing algorithms available for server load balancing, including round robin (Round Robin), hashing (hash), least-connection (Least Connection), Response-Speed algorithm (Response time), Weighted method (Weighted) and so on.

The contents of the $_files array are as follows:$_files[' myFile ' [' Name '] The original name of the client file. The MIME type of the $_files[' myFile ' [' type '] file requires the browser to provide support for that information, such as "Image/

PHP prevents the form from repeating the instance submission: Copy CodeThe code is as follows: Session_Start (); $_session[' fsess ']= ($_session[' fsess '])? $_session[' Fsess ']:time (); ?> Prevent forms from repeating

Many novice in the process of the project, will encounter such a situation, such as: The Forum coin project, the user pay forum currency if suddenly broken network, computer crashes, power outages, and other natural disasters, resulting in this

Rewritecond, like the IF statement in our program, means that if one or a few conditions are met, the Rewriterule statement immediately below the Rewritecond is executed, which is Rewritecond's most primitive and basic function, for convenience of