PHP

These two lines are considered as an entry in the file. You can add any number of entries as needed. You can add multiple Disallow rows and multiple User-agents to an entry. Create a robots.txt file The simplest robots.txt file uses two rules:

The mod parameter in volist is equivalent to specifying a frequency. The system calculates the remainder (the % operator in PHP) of the mod parameter value in the current actual record. Combined with tags (such as eq tags), you can control the

ADODB installation, use of ADODB, usage of PHPadodb, use of adodo in PHP, PHP communication, PHP blog, PHP technical exchange, PHP Technical Blog In PHP website development, for the database platform portability solution, we have previously

PhpMyAdmin-mysql extension cannot be loaded due to an error. Please check the PHP configuration-document. phpMyAdmin cannot load mysql extension, PHP blog, PHP extension, PHP technical blog, PHP configuration, and mysql extension. The PHP blog has

PHP function, PHP sorting function, PHP array function, PHP array sorting function, sort, asort, rsort, krsort, ksort The sort () function is used to sort array units from low to high.The rsort () function is used to sort array units from high to

How to create a. htaccess file? Many new users do not create. htaccess files. How to create a. htaccess file?Many new users will not create. htaccess files. here I will tell you the simplest way to create. htaccess files. Because. the htaccess

As seo practitioners, we must have a certain understanding of search engines. maybe many people know Google and Baidu spider. Today, let's talk about the Google bots you know. As seo practitioners, we must have a certain understanding of search

I wrote a few articles about WordPress at a time, because wp is too powerful. although it is a blog procedure, it can do a lot of features that cms procedures cannot do. today we will talk about WordPress. Not only do I write a few articles about

Because the time zone in each place is different, the time in php is different from the time in asp. However, in actual php website development, the time required for registration, order, purchase, and so on is very long. Because the time zone in

The basic PHP syntax is important. After learning this, my teacher said that the most important thing in PHP is the array, which can be seen everywhere. as programming increases, I feel more and more like this. The basic PHP syntax is important.

In the last two phases of PHP Session state control, we talked about the usage of cookies and Sessions. many friends know their usage, but the difference between them may not be very clear. Last two phasesPHP session status controlIn the

However, CURL automatically caches DNS information. Only one DNS query is required for a webpage or image request under the same domain name. Difference between the function fopen/file_get_contents/curl for PHP to capture external resources

1. Rad believes that there are generally 250 friends and family behind each customer. If you win the favor of a customer, it means that you have won the favor of 250 people. the opposite is simple to practical, not fancy. Why is google's homepage

PHP provides a large number of predefined constants to any script it runs. However, many constants are defined by different extension libraries. only when these extension libraries are loaded PHP provides a large number of predefined constants to

Unlike normal classes, a singleton class cannot be directly instantiated in other classes. A singleton class can only be instantiated by itself. to obtain this restriction, you must mark the constructor as private. To make the singleton class take

Recently, I encountered an interesting problem: modifying a certain line of characters in a file, but the file is too large. it is impossible to directly read the file (). I used fgets to jump to the specified line, I recently encountered an

Today, I talked to my colleagues about whether to disable the database connection for the Destructor in the DB class, it seems that the database connection is closed before the DB object is destroyed. today, I am discussing with my colleagues

It has been almost three weeks since the start of the course in December May 9. The following are some common mistakes made by new students: It has been almost three weeks since the start of the course in December May 9. The following are some

Some key table structures for group buying in the most soil: Some key table structures for group buying in the most soil Coupon cardId: coupon IDCode IdentifierPartner_id merchant IDTeam_id product IDOrder_id order IDCredit coupon amountHas consume

$. Ajax and other functions encapsulated in jQuery have been used for a long time to form dependencies, and even forget what happened to AJAX. now let's review the process of implementing native AJAX in XMLHttpRequest. For WEB developers, the word