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1. Top results related to what does d+ mean in php code

   • What does this line of code mean in PHP? h(u($_GET[]))

     Top Answer

     Answered Sep 27, 2018 · 2 votes

     h and u are not standard PHP functions. They are most likely custom functions declared somewhere else in the application.

     As for your error, they are most likely not caused by those but rather by the fact that you may not have a 'contact' parameter in your url. A quick fix could be either to check if it's set before executing this statement or to use a default value, but a better approach would be to understand what it's supposed to do.

     For that you can dig into the remaining of the code and try to find the declaration of those functions (h and u) and try to understand it. After that, you may use the following to check if the parameter exists :

     if (isset($_GET['contact'])) { //... statement here}-

     But I highly suggest you to find what it's supposed to do first and then decide how to fix it.

     Edit: Found the definition of an h() function in cakephp : https://api.cakephp.org/2.7/function-h.html If you are using cakephp, what h() does is basically a shorthand of htmlspecialchars(), which escapes special html characters to prevent hacking and deformed expressions.

     But I did not find anything for u(). This one may well be a custom function.

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     1/5

   • What does exactly mean by 'Line feeds' in HTML and PHP? How do they are added in HTML and PHP code?

     Top Answer

     Answered Nov 13, 2017 · 1 votes

     What does exactly mean by 'Line feeds' in HTML?

     It is a general computing term.

     The character (0x0a in ASCII) which advances the paper by one line in a teletype or printer, or moves the cursor to the next line on a display.

     — source: Wiktionary

     How to add them to the HTML code

     Press the enter key on your keyboard. Note that (with a couple of exceptions like <pre>) all whitespace characters are interchangeable in HTML. A new line will be treated as a space.

     as well as PHP code

     Ditto … or you could use the escape sequence \n inside a string literal.

     and make visible in a web browser?

     The material you quoted is talking about making source code look nice. You generally don't want line feed characters to be visible in a browser.

     You could use a <pre> element instead.

     Outside of <pre> elements (and the CSS setting they have by default) you can use a space instead of a new line for the same effect in HTML.

     What HTML entities/tags/characters are used to achieve this?

     &#10;

     … but the advice given in the last sentence of the material you quoted is probably a better approach.

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     2/5

   • What does "=>" mean in PHP?

     Top Answer

     Answered Jan 20, 2015 · 135 votes

     => is the separator for associative arrays. In the context of that foreach loop, it assigns the key of the array to $user and the value to $pass.

     Example:

     $user_list = array( 'dave' => 'apassword', 'steve' => 'secr3t');foreach ($user_list as $user => $pass) { echo "{$user}'s pass is: {$pass}\n";}// Prints: // "dave's pass is: apassword"// "steve's pass is: secr3t"

     Note that this can be used for numerically indexed arrays too.

     Example:

     $foo = array('car', 'truck', 'van', 'bike', 'rickshaw');foreach ($foo as $i => $type) { echo "{$i}: {$type}\n";}// prints:// 0: car// 1: truck// 2: van// 3: bike// 4: rickshaw

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     3/5

   • What does @ mean in PHP?

     Top Answer

     Answered Apr 19, 2011 · 72 votes

     The @

     operator tells PHP to suppress error messages, so that they will not be shown.

     For instance, using:

     $result = mysql_query("this is an invalid query");-

     would result in a warning being shown, telling you that the MySQL query is invalid, while

     $result = @mysql_query("this is still an invalid query");-

     would not.

     Note, however, that this is very bad programming practice as it does not make error disappear, it just hides them, and it makes debugging a heck of a lot worse since you can't see what's actually wrong with your code.

     Instead of using @, you should disable error_reporting

     and display_errors

     just display_errors in php.ini

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     4/5

   • What does ":" mean in PHP?

     Top Answer

     Answered Jan 20, 2011 · 40 votes

     It's called an Alternative Syntax For Control Structures. You should have an endwhile; somewhere after that. Basically, it allows you to omit braces {} from a while to make it look "prettier"...

     As far as your edit, it's called the Ternary Operator (it's the third section). Basically it's an assignment shorthand.

     $foo = $first ? $second : $third;

     is the same as saying (Just shorter):

     if ($first) { $foo = $second;} else { $foo = $third;}

     Other Answers

     Answered Aug 25, 2011 · 14 votes

     There is an example listed in the documentation for while

     that explains the syntax:

     Like with the if statement, you can group multiple statements within the same while loop by surrounding a group of statements with curly braces, or by using the alternate syntax:

     while (expr): statement ...endwhile;

     An answer over here explains it like this:

     This (:) operator mostly used in embedded coding of php and html.

     Using this operator you can avoid use of curly brace. This operator reduce complexity in embedded coding. You can use this(:) operator with if, while, for, foreach and more...

     Without (:) operator

     <body><?php if(true){ ?><span>This is just test</span><?php } ?></body>

     With (:) operator

     <body><?php if(true): ?><span>This is just test</span><?php endif; ?></body>

     Other Answers

     Answered Jan 20, 2011 · 8 votes

     it's like:

     <?phpwhile(have_posts()) { the_post();}?>

     Check all answers on Stack Overflow

     5/5

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2. stackoverflow.com › questions › 6865673php - What does the syntax '%s' and '%d' mean as shorthand ...

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   1. That's part of the printf method. Those are placeholders for the variables that follow. %d means treat it as a number. %s means treat it as a string. The list of variables that follow in the function call are used in the order they show up in the preceding string. answered Jul 28, 2011 at 21:10.

   • They are format specifiers, meaning a variable of a specified type will be inserted into the output at that position. This syntax works outside of...
   • That's part of the printf method. Those are placeholders for the variables that follow. %d means treat it as a number. %s means treat it as a st...
   • %s means format as "string" and is replaced by the value in $this->number_of_floors %d means format as "integer", and is being replaced by the va...

3. www.youtube.com › watchPHP : What does \d+ mean in regular expression terms? - YouTube

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   PHP : What does \d+ mean in regular expression terms?To Access My Live Chat Page, On Google, Search for "hows tech developer connect"As promised, I'm going t...

4. People also ask

   What is PHP & how does it work?

   • PHP is an open-source server-side scripting language that many devs use for web development. It is also a general-purpose language that you can use to make lots of projects, including Graphical User Interfaces (GUIs). In this article, I will help you explore the world of PHP so you can learn how it works and its basic features.

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   What does %D & %S mean in a function call?

   • Those are placeholders for the variables that follow. %d means treat it as a number. %s means treat it as a string. The list of variables that follow in the function call are used in the order they show up in the preceding string. printf is a "classic" function that have been around for a while and are implemented in many programming languages.

   php - What does the syntax '%s' and '%d' mean as shorthand for calling

   stackoverflow.com/questions/6865673/what-does-the-syntax-s-and-d-mean-as-shorthand-for-calling-a-variable

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   Is D+ a regular expression?

   • That is a regular expression to match the word Chapter followed by space, then one or more digits (\\d+) (these first digits are captured to $1 I don't know if you are using $1 or ignoring it). After that it matches a dot \\., then it is allowed but not required to have digits after the dot \\d*

   What does \\d in Javascript regex do? - Stack Overflow

   stackoverflow.com/questions/4541133/what-does-d-in-javascript-regex-do

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   How is chapter (D+) used?

   • Chapter (\\d+)\\.\\d*/ <- how is it used? That is a regular expression to match the word Chapter followed by space, then one or more digits (\\d+) (these first digits are captured to $1 I don't know if you are using $1 or ignoring it).

   What does \\d in Javascript regex do? - Stack Overflow

   stackoverflow.com/questions/4541133/what-does-d-in-javascript-regex-do

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5. itecnotes.com › tecnote › php-what-does-d-mean-inPhp – What does \d+ mean in regular expression terms

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   This makes sure the statement and the values aren't parsed by PHP before sending it to the MySQL server (giving a possible attacker no chance to inject malicious SQL). Although you can set the charset in the options of the constructor, it's important to note that 'older' versions of PHP (before 5.3.6) silently ignored the charset parameter in ...

6. www.freecodecamp.org › news › what-is-php-the-phpWhat is PHP? The PHP Programming Language Meaning Explained

   www.freecodecamp.org › news › what-is-php-the-php

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   Aug 30, 2021 · The PHP Programming Language Meaning Explained. Kolade Chris. PHP is an open-source server-side scripting language that many devs use for web development. It is also a general-purpose language that you can use to make lots of projects, including Graphical User Interfaces (GUIs). In this article, I will help you explore the world of PHP so you ...

7. code-boxx.com › php-delimitersPHP Delimiters (Very Simple Examples) - Code Boxx

   code-boxx.com › php-delimiters

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   Oct 20, 2023 · In PHP, a pair of <?php and ?> tags are used as delimiters to mark where the PHP code is in a document; Whatever is not enclosed within these delimiters will be output as it is. Yes, this is the very first thing beginners learn – Start a PHP script with <?php and end it with ?> .

8. stackify.com › php-debugging-guideA Detailed Guide to PHP Debugging - Stackify

   stackify.com › php-debugging-guide

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   Mar 13, 2024 · Use the context menu (right-click) to control the PHP server as shown in the screenshot below. This should put our IDE in a state that’s ready to attach to Xdebug. Communications with the debugger happen through a TCP port on the debug server. Xdebug uses the DBGp protocol through port 9000 by default.

9. www.php.net › manual › enPHP: What is PHP? - Manual

   www.php.net › manual › en

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   PHP (recursive acronym for PHP: Hypertext. Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. Nice, but what does that mean?