php documentation

$sum=(0.5+0.2+0.2+0.1);//var_dump float(1)$sum2=1 //var_dump int(1)$sum == $sum2 //var_dump bool(false) What's the matter, please?In addition, the following tests are possible.For example （0.5+0.2+0.3+0.0)==1 //var_dump bool(true) Reply

Why is PHP the best language in the world, then you say, fortunately where? This issue has been closed due to: Reply content: Why is PHP the best language in the world, then you say, fortunately where? "Why is it that the programmer doesn't

About requireAnd includeKeywords, the general difference in my mind is that the former is an unconditional insertion at pseudo-compile time, which is executed by the runtime interpretation. The problem is as follows: 1, if the file to be introduced

This article is the second article of Yii Learning Summary series, mainly introduces us to the data Access object (DAO), which is very detailed, the small partner with the need of reference YII provides powerful database programming support. The

A known method is to use Session_set_save_handler, take over all the session management work, usually the session information is stored in the database, so that the SQL statement can be used to delete all the expired session, Control the duration of

I have never touched on PHP. I have asked my predecessors to give me some experience and I have been using java,. net, and other development tools. Recently, my boss asked me to use PHP for development. I would like to share my experiences with my

PHP implementation of the Web site files bulk compression download function, The PHP implementation of the file bulk compression package download, this process will be used to ziparchive this class, note that before using this class, Linux needs to

I'm afraid I don't know what to say. Phpinfo view is open zip Ah View PHP official documentation see that everyone else is directly new. $zip = new Ziparchive; This class is not an extension installed directly can be used thinkphp3.2.3

Named pipes, read and write reader.php and writer.php (code see below). Now I need to execute writer.php through the browser to write the data to the pipe and execute reader.php in the shell to read the data. The problem is prompt write success, but

http://trash.chregu.tv/phpconf2003/examples/ New XML features of PHP5 Author Christian Stocker Translator Ice_berg16 (The Scarecrow looking for a dream) For the reader This article is targeted at all levels of PHP developers interested in PHP5 's

PHPMySQL 3-Day 1 (2 ). 4. if I tell you the first script is over, you will be very happy. The installation process of the software is always unpredictable, because the system and the system are the first script. If I tell you that you are already

Analysis of multi-thread internal multithreading instances in PHP This article mainly introduces the PHP multi-thread internal multi-threading, example analysis of PHP multi-threading skills, with a certain reference value, the need for friends can

I want to call the private attribute of the subclass in the parent class, but error 500 is returned. {Code...} after this code is run, the server reports a 500 error. Why does the returned result of calling method_exists be true or cannot return

PHP function Strip_tags provides the ability to remove HTML and PHP tags from a string, which attempts to return the result of the given string str after removing null characters, HTML, and PHP tags. Because Strip_tags () cannot actually validate

Their own small PHP application, using Curl to grasp the web down processing, in order to wear the wall convenient, using Privoxy as a proxy, easy to choose which sites use proxy, which do not. But today, there are strange problems, visit Google

$sql = "Update table set Nikename= ' {$nikename} ' where userid={$userid}"; $sql =sprintf ("Update table set Nikename= '%s ' where userid=%d", $nikename, $userid) Reply to discussion (solution) I don't know, it feels like PHP is very hot

Php/fi PHP inherits from an old project called Php/fi. Php/fi was created in 1995 by Rasmus Lerdorf, initially a simple Perl script that tracks the information of people accessing his page. It named this set of scripts "Personal Home Page Tools". As

Opening The database required by the virtual travel site must use MS SQL Server because of the Bishi needs of the teacher. The Web programming language I'm best at is PHP, but linking MS SQL Server in PHP is a hassle, and I personally analyze the

I have never touched on PHP. I have asked my predecessors to give me some experience and I have been using java,. net, and other development tools. Recently, my boss asked me to use PHP for development. I would like to share my experiences with my

Target Readers: This article is intended for PHP developers who are interested in the new XML functions of PHP5. We assume that the reader has basic knowledge about XML. However, if you have already used XML in your PHP, this article will also