PHP

What is robot! define('ISROBOT', getrobot());if(defined('NOROBOT') && ISROBOT) {exit(header("HTTP/1.1 403 Forbidden"));} The code above is said to prevent robot access. I don't understand where it represents a bot. This is how the robot's

Mysql trigger problems can I use a trigger to control whether a field will reject update once it has a value. one of the 200 fields in table t1 is f1. When a record is inserted into table t1, the f1 field must be null. An update changes the f1

How do I write thinkphp level 4 association queries? how do I write thinkphp level 4 association queries online? Link: How do I associate the aid of A in B, the bid of B in C, and the Cid of C in D? A --> B --> C --> D M ("D")-> jion ("A on B. aid =.

In this sentence, is this a function? $ page =$ _ REQUEST ['Page']? (Int) $ _ REQUEST ['Page']: 1 In this sentence, what is the meaning of (int)? I have never seen such a writing method. it's a piece of cake in a bracket. what is it? it's

How to allocate data to the Public template file in ThinkPhp (solution) ??? I don't understand what it means It seems that the value is assigned to the controller, which can be used.If many pages are used, values are assigned directly to the

In the mvc mode, how does one hide the entry file? does it mean that it has no content, or is it difficult to understand? how is this implemented? Reply to discussion (solution) The portal file is accessed by users, just like the door of the

Please give me some basic thinkphp concepts: after THINKPHP is installed in SAE, run the website and prompt "The project directory cannot be written. please create a project directory manually and set it to writable" Background: I just entered

PHP_IloveU (1) php food and clothing parents: Use the usort () function to sort two-dimensional arrays // PHP_ I love U (1) php clothes and food parent: Use the usort () function to sort two-dimensional arrays // Use the usort () function in PHP to

The sharing function can be used to obtain the successful or failed values. The current website has the sharing function, for example, sharing to a QQ space or sharing to Sina Weibo. Now, you need to know whether the user has successfully shared

How can we solve this garbled problem? Header ("Content-Type: text/html; charset = utf-8 "); ?>

CentOS6.3 self-starting nginx, php, hadoop the blue part is the file content, and the orange part is the newly added startup project [Root @ master bin] # cat/etc/rc. d/rc. local#! /Bin/sh # # This script will be executed * after * all the

Why is it prompted? When the file test.txt is 0 bytes, is this prompted? Warning: fread () [function. fread]: Length parameter must be greater than 0 in D: \ APMServ5.2.6 \ www \ htdocs \ 01 \ file. php on line 7 In addition, which of the

SQL, deduplicated query distinct select DISTINCT `object_id`, t3.width as width, t3.height as height,t3.ismark as ismark, t2.rtime as add_time,t1.add_author as add_author,t1.image_url as image_url,t1.id as id,t1.browse_real_cnt as browse_real_cnt

Php retrieves the value of the input array a. php $ Version = $ _ POST ['version'] Method = "post" $ _ POST ['xxxxx'] Send request Version number Encoding

How to configure logs in PHP5 in window My development environment is Nginx + PHP. The environment is simple and convenient, but I still cannot find the PHP log file. how can I generate a PHP log file? PHP version: PHP 5.6 (5.6.3) VC11 x64 Non

Php file operation Basic usage Generated successfully! "; */$ Con = array ('news title', 'News content'), array ('news title', 'News content2 '), array ('News headlines 3', 'News content3'); foreach ($ con as $ id => $ val) {$ title = $ val [0]; $

How can we use these three items together? $ _ mysqli-> rollback (); $ _ Mysql-> atuocommit (); And how to use InnoDB Reply to discussion (solution) Http://php.net/manual/zh/mysqli.autocommit.php usage manual A small example $ Mysqli = new

Can I use a-& gt; value for a new object? generally, the php object-oriented value uses the-> symbol, that is, an object is first created, use this arrow tool to obtain methods and attributes in the class. But how can this arrow be used even if

For the PHPcurl packet capture problem, curl is used to capture web pages, books, scores, and course tables. However, it cannot be captured, and a 500 error is reported. This is the page captured by the httpwatch packet capture tool. the cookie is

A beginner's question about while function dql ($ SQL) { $ Res = $ this-> mysqli-> query ($ SQL ); If (! Empty ($ res )) { While ($ row = $ res-> fetch_row ()) Return $ row; $ Res-> free_result (); } Else {Return null ;} } I don't