print variable

Arrays are a type of variables in PHP and are often used in PHP Development. Therefore, it is very important to print the array content using PHP statements. 1. use print_r ($ array/$ var)Print is the meaning of printing, and r is taken from the

What are the usage differences between print_r, var_dump, and var_export functions in php? print_r ($ array $ var )? Print indicates the meaning of printing, and r is taken from the word of Array. then, this function is used to print the Array

This article gives you a summary of 7 kinds of PHP commonly used print output functions, respectively, is Echo,print,printf,sprintf,print_r,var_dump,die, I hope to learn PHP can help you Development will need to debug code, and PHP debugging code

This is a creation in Article, where the information may have evolved or changed. 1.Go language environment construction and basic knowledge Official Go Language website (http://golang.org)Code Package Documentation Web site (http://godoc.org)Go

21-day Boutique blockchain free learning, in-depth expert led the way, to help developers easily play the blockchain! >>> The go language is now becoming more popular among developers, and many people are naturally looking for the right IDE for

Golang is my favorite language, it is concise, efficient, easy to learn, the development of high efficiency, can also be compiled into machine code ... Although it was born, and is now popular in the market, but it is a new language, there are many

GDB is a powerful UNIX program debugging tool released by the GNU open-source organization. If you are working on a UNIX platform, you will find that the GDB debugging tool has more powerful functions than the visual debugger of VC and BCB. At the

1. Use print_r ($ array/$ var) Print is the meaning of printing, and R is taken from the word of array. The function is to print the array content. It can print both the array content and common variables. Print_r ($ _ request ); Print_r ($ _ Get);/*

Ezsql is a very useful PHP database operation class. The famous open source blog WordPress database operation uses the Ezsql MySQL section. The database operation class supports almost all major databases such as: Php-pdo, MySQL, Oracle,

A var_dump(PHP 3 >= 3.0.5, PHP 4, PHP 5) Var_dump--Information about printing variables Describe void Var_dump (mixed expression [, mixed expression [, ...]]) This function displays structure information about one or more expressions, including the

/*******echo********/echo-output one or more strings descriptionEcho (String arg1 [, String ...]) Echo () is not actually a function (it is a language structure), so you do not need to use parentheses. Echo () (unlike some other language constructs)

What are the usage differences between print_r, var_dump, and var_export functions in php? print_r ($ array/$ var )? Print indicates the meaning of printing, and r is taken from the word of Array. then, this function is used to print the Array

Php basic function definition constant define (APPCONFIG, plaConfig); get the constant echoconstant (APPCONFIG ). n; echoAPPCONFIG. n; the constant cannot define two initialization variable values: ini_set (display_errors, 1); get the variable value.

Original link: http://www.cnblogs.com/pssp/p/5189345.htmlLet me say a closed-bag usage scenario.No closure versions are usedWindow.onload = function () { var ul = document.getElementsByTagName ("ul") [0]; var li = ul.getelementsbytagname ("li")

Before have written the closure, scope, this aspect of the article, but now think about what was written at that time is too much nonsense, so that around around, so that the novice is more difficult to understand, so there is this article, good and

1. How to use the collectionIn Python, set is the type of a collection of basic data types, and he has a variable set (set ()) and immutable (Frozenset) two, including set set, set set Add, set Delete, intersection, set, difference set, and a series

How often do we meet in the development of Swift? And! , understanding the deep content of these two symbols is very advantageous to our development;At present, the online tutorial on swift3.0 is quite small, if you go to search will find early

Python variablesIn Python, the concept of variables is basically the same as the equation variables of the middle school algebra. For example, for an equation y=x*x  , it x is a variable. When, the result of the x=2 calculation is 4 , when x=5 , the

PHP7 up and runningReal-Park Learning videoThe original link of the park learningPHP7, Xdebug and HomesteadAfter going through 13 RC versions, PHP 7 finally came. Before we start evaluating the new features of PHP 7, we need to build a separate

HoistVt. Arise, lift;VI. be lifted or elevated;N. cranes, lifts; Rises Push, hold, lift; Original address: http://www.bootcss.com/article/variable-and-function-hoisting-in-javascript/This article is very good written, a look on it, the first