identifier

ZF2 - \\Zend\\Db\\Adapter\\Platform::getQuoteIdentifierSymbol()

本秂侑毒 提交于 2019-12-04 07:15:39
Code is as following, where I aim to use Pdo_mysql: use \Zend\Db\Adapter\Adapter; use \Zend\Db\Sql\Sql; use \Zend\Db\Sql\Expression; $params = array( 'driver' => "Pdo_mysql", 'host' => &$this->Registry->config[ 'sql' ][ 'host' ], 'username' => &$this->Registry->config[ 'sql' ][ 'user' ], 'password' => &$this->Registry->config[ 'sql' ][ 'passwd' ], 'dbname' => &$this->Registry->config[ 'sql' ][ 'dbname' ] ); $this->adapter = new \Zend\Db\Adapter\Adapter( $params ); $this->platform = $this->adapter->getPlatform(); $this->sql = new Sql( $this->adapter ); And when I check identifier-quote symbol

Javascript - Uncaught SyntaxError: Unexpected identifier

蓝咒 提交于 2019-12-04 06:17:57
I'm having a frustrating time trying to get this to work, Chrome keeps displaying an Uncaught Syntax error, but being a beginner to javascript, I have no idea where to look. Any help or pointers would be appreciated function details(user) { var fuel = prompt("Would you prefer petrol or diesel?"); var passengers = prompt("How many passengers will there be?"); var aircon = prompt("Do you require air-conditioning?"); var transmission = prompt("Do you want a Manual, Semi-Automatic or Automatic Transmission?"); var hire = prompt("How long would you like to hire a vehicle for? (Day Hire, Weekend

Non-ASCII Python identifiers and reflectivity [duplicate]

我的梦境 提交于 2019-12-04 04:54:24
This question already has answers here : Closed last year . Identifier normalization: Why is the micro sign converted into the Greek letter mu? (2 answers) I have learnt from PEP 3131 that non-ASCII identifiers were supported in Python, though it's not considered best practice. However, I get this strange behaviour, where my 𝜏 identifier (U+1D70F) seems to be automatically converted to τ (U+03C4). class Base(object): def __init__(self): self.𝜏 = 5 # defined with U+1D70F a = Base() print(a.𝜏) # 5 # (U+1D70F) print(a.τ) # 5 as well # (U+03C4) ? another way to access it? d = a.__dict__ # {'τ': 5}

Is it possible to “escape” a method name in PHP, to be able to have a method name that clashes with a reserved keyword?

a 夏天 提交于 2019-12-04 03:56:23
问题 I'm doing MVC in PHP, and i'd like to have a list() method inside my Controller, to have the URL /entity/list/parent_id, to show all the "x" that belong to that parent. However, I can't have a method called list(), since it's a PHP reserved keyword. In VB.Net, for example, if I need to have something with a name that clashes with a reserved keyword, I can wrap it in [reserved_name]. In SQL, you can do the same thing. In MySQL, you use the backtick ` Is there some syntax in PHP that specifies

What's the rationale/history for the # convention of identifying methods in Ruby?

别等时光非礼了梦想. 提交于 2019-12-04 02:58:02
For example, I've always seen methods referred to as String#split , but never String.split , which seems slightly more logical. Or maybe even String::split , because you could consider #split to be in the namespace of String . I've even seen the method alone, when the class is assumed/implied ( #split ). I understand that this is the way methods are identified in ri. Which came first? Is this to differentiate, for example, methods from fields? I've also heard that this helps differentiates instance methods from class methods. But where did this start? The difference indicates how you access

Is it poor form to use CLASS attributes with no corresponding CSS rule? [duplicate]

假如想象 提交于 2019-12-04 02:54:03
问题 This question already has answers here : Can I use non existing CSS classes? (13 answers) Closed 5 years ago . For example if I wanted to select some elements with a certain class using jQuery, and for that reason only, is it always expected that those classes SHOULD be defined in the css?. <div class="xyz"> something </div> <div class="xyz"> something else </div> //with example jQuery $(".xyz").hide(); //is it wrong no element 'xyz' is defined in css? 回答1: Using CSS classes and - depending

Is there a length limit on g++ variable names?

≯℡__Kan透↙ 提交于 2019-12-03 23:00:28
See title​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ Michael Aaron Safyan Short Answer: No Long Answer: Yes, it has to be small enough that it will fit in memory, but otherwise no, not really. If there is a builtin limit (I don't believe there is) it is so huge you'd be really hard-pressed to reach it. Actually, you got me really curious, so I created the following Python program to generate code: #! /usr/bin/env python2.6 import sys; cppcode=""" #include <iostream> #include <cstdlib> int main(int argc, char* argv[]) { int %s = 0; return 0; } """ def longvarname(n): str="x"; for i in xrange

What characters are allowed in Perl identifiers?

99封情书 提交于 2019-12-03 17:15:02
问题 I'm working on regular expressions homework where one question is: Using language reference manuals online determine the regular expressions for integer numeric constants and identifiers for Java, Python, Perl, and C. I don't need help on the regular expression, I just have no idea what identifiers look like in Perl. I found pages describing valid identifiers for C, Python and Java, but I can't find anything about Perl. EDIT: To clarify, finding the documentation was meant to be easy (like

Why does a programming language need keywords?

人走茶凉 提交于 2019-12-03 06:23:14
问题 For example (in C): int break = 1; int for = 2; Why will the compiler have any problems at all in deducing that break and for are variables here? So, we need keywords because we want the programs to be readable we do not want to over-complicate the job of already complex compilers of today but most importantly, a language is lot more powerful if some 'key'words are reserved for some special actions. Then, the language can think of being useful at a higher level rather than dying in trying to

Generating a unique ID in PHP

核能气质少年 提交于 2019-12-03 01:59:15
I'm trying to generate a unique ID in php in order to store user-uploaded content on a FS without conflicts. I'm using php, and at the moment this little snippet is responsible for generating the UID: $id = tempnam (".", ""); unlink($id); $id = substr($id, 2); This code is hideous: it creates a temporary file on the FS and deletes it, retaining only the relevant unique part of the generated string. Is there any better way to do this, most preferably without any external dependencies? Thanks much! string uniqid ([ string $prefix [, bool $more_entropy ]] ) Gets a prefixed unique identifier based