PHP

Parser is a php built-in parser used to process xml. its work consists of three events: start tag, read data, and end tag. Parser is a php built-in parser used to process xml. its work consists of three events: start tag, read data, and end

Des encryption and decryption in php. here we can look at two functions, which are about des encryption and decryption in php. These two functions can encrypt data into complex strings, if you do not decrypt the data, you cannot know how to encrypt

The _ FILE _ constant in php returns the complete path of the FILE and the FILE name. dirname (_ FILE ___) function returns the path where the script is located. The _ FILE _ constant in php returns the complete FILE path and FILE name. The dirname

Get a specified number of random numbers from the specified range, which are not repeated. first, put the specified range into an array and retrieve the number from the array, this number is removed from the array every time you extract it. This

Many people have encountered that PHP sessions always don't expire. as the browser process goes, here is a brief introduction. Many people have encountered that PHP sessions always don't expire. as the browser process goes, here is a brief

The html_checkboxes method in smarty is used to generate multiple checkboxes and initialize which one is selected. usage in the Template: The html_checkboxes method in smarty is used to generate multiple checkboxes and initialize which one is

Simple pagination implemented with smarty. The following is the smarty code in the template. it is very simple to pass in the related variables with smarty, but the page parameter must also be input in the php code, for specific implementation, see

For beginners of php, it is often seen that there is an at (@) symbol in front of a function name, but they do not know its role and usage. after removing it, it seems that it has no effect on the program, I am very confused. Simply put, @ can

The str_pad () function of php fills the string with the specified length, which is similar to str_repeat. the usage of str_repeat is not explained here. if you are interested, you can find the manual. The str_pad () function of php fills the string

Sometimes you need to read rss from different websites. Below is a php program to read rss cyclically. it mainly outputs an array string and solves the encoding problem. sometimes you need to read rss from different websites, below is a php program

Html code that uses PHP to filter submitted forms may contain code that introduces external dangerous content. For example, when a user submits a form that contains html content, the layout of the displayed page may be messy, the html code that

The memcached module in php is very useful in actual application development, especially for websites with large traffic volumes. its main function is to cache data into the memory, the read speed will be improved by times when it is used, but this

These two functions are described and used in detail in the php manual, but the parameters and styles are not clear, the function format is described in detail and usage of these two functions in the php manual, but the parameters and styles are not

When we submit a form, sometimes the form is submitted incorrectly and the previous page needs to be re-filled. at this time, some data in the form will be lost, and we need to fill it out again, which is depressing, add the following code at the

To use PHP to generate image thumbnails, you must first ensure that the GD2 graphics library is installed on your PHP Server and use a class to generate image thumbnails. the class source code is as follows: use PHP to generate image thumbnails,

The str_replace function is often used in actual development. for example, we often operate on strings. in this case, we will inevitably replace strings frequently. The str_replace function is often used in actual development. for example, we often

When I used the Baidu webmaster tool to detect website optimization suggestions the other day, I found that Gzip compression was not enabled for my website, but I remember that it was previously enabled, why is Gzip compression disabled by

Anyone who has built a website using the open-source program wordpress may be clear that the default title format of wordpress is: site name, which is not only not beautiful, but also not conducive to search engine optimization Anyone who has built

Kids shoes who like to play with wordpress know that wordpress's built-in themes generally do not set the character indent for the first line of the article section (because wordpress is developed by foreign users) All the children's shoes who like

The basic difference between require and include in PHP is that in general PHP development, the functions of require and include are roughly the same, but there are some differences. please refer to the following description. The basic difference