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1. • • 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 classes as well. From the documentation: d - the argument is treated as an integer, and presented as a (signed) decimal number. s - the argument is treated as and presented as a string.
     Reference:

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

2. Top results related to what does d+ mean in php software programming tutorial

   • 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

     Check all answers on Stack Overflow

     1/5

   • What does "=>" mean in PHP?

     Top Answer

     Answered Jan 20, 2015 · 136 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

     Check all answers on Stack Overflow

     2/5

   • What does '

     Top Answer

     Answered Nov 19, 2021 · 336 votes

     It's a shorthand for <?php echo $a; ?>.

     It's enabled by default since 5.4.0 regardless of php.ini settings.

     Other Answers

     Answered Nov 19, 2021 · 63 votes

     It's a shorthand for this:

     <?php echo $a; ?>-

     They're called short tags; see example #1 in the documentation.

     Other Answers

     Answered Aug 29, 2014 · 25 votes

     Since it wouldn't add any value to repeat that it means echo, I thought you'd like to see what means in PHP exactly:

     Array( [0] => Array ( [0] => 368 // T_OPEN_TAG_WITH_ECHO [1] => <?= [2] => 1 ) [1] => Array ( [0] => 309 // T_VARIABLE [1] => $a [2] => 1 ) [2] => ; // UNKNOWN (because it is optional (ignored)) [3] => Array ( [0] => 369 // T_CLOSE_TAG [1] => ?> [2] => 1 ))

     You can use this code to test it yourself:

     $tokens = token_get_all('<?=$a;?>');print_r($tokens);foreach($tokens as $token){ echo token_name((int) $token[0]), PHP_EOL;}

     From the List of Parser Tokens, here is what T_OPEN_TAG_WITH_ECHO links to.

     Check all answers on Stack Overflow

     3/5

   • What does :: mean in php?

     Top Answer

     Answered Aug 05, 2011 · 21 votes

     It's the 'Scope Resolution Operator'.

     The Scope Resolution Operator (also called Paamayim Nekudotayim) or in simpler terms, the double colon, is a token that allows access to static, constant, and overridden properties or methods of a class.

     http://php.net/manual/en/language.oop5.paamayim-nekudotayim.php

     Check all answers on Stack Overflow

     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 Nov 19, 2021 · 63 votes

     It's a shorthand for this:

     <?php echo $a; ?>

     They're called short tags; see example #1 in the documentation.

     Other Answers

     Answered Aug 29, 2014 · 25 votes

     Since it wouldn't add any value to repeat that it means echo, I thought you'd like to see what means in PHP exactly:

     Array( [0] => Array ( [0] => 368 // T_OPEN_TAG_WITH_ECHO [1] => <?= [2] => 1 ) [1] => Array ( [0] => 309 // T_VARIABLE [1] => $a [2] => 1 ) [2] => ; // UNKNOWN (because it is optional (ignored)) [3] => Array ( [0] => 369 // T_CLOSE_TAG [1] => ?> [2] => 1 ))

     You can use this code to test it yourself:

     $tokens = token_get_all('<?=$a;?>');print_r($tokens);foreach($tokens as $token){ echo token_name((int) $token[0]), PHP_EOL;}

     From the List of Parser Tokens, here is what T_OPEN_TAG_WITH_ECHO links to.

     Check all answers on Stack Overflow

     5/5

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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.

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

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

   See all results for this question

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

   stackoverflow.com › questions › 6865673

   • Cached

   1. %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 value in $this->color. printf is a "classic" function that have been around for a while and are implemented in many programming languages. http://en.wikipedia.org/wiki/Printf.

   • 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...

5. dev.to › hoangit › modern-php-features-explained-phpModern PHP features explained - PHP 8.0 and 8.1 - DEV Community

   dev.to › hoangit › modern-php-features-explained-php

   • Cached

   • Constructor Property Promotion
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   See full list on dev.to

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   Yet another feature that I perhaps overuse these days. I find that using named arguments allows us to be declarative in our code - no more guessing what that third parameter to that function means in relation to your code base. Let's look at another example. As you can see in the above example - getting the height and width the wrong way around wou...

   See full list on dev.to

   An improvement that everyone loves that I have spoken to, a significant improvement. In the past, we used a big switch statement with multiple cases, and let's be honest - it wasn't the nicest thing to look at or deal with. Let's look at an example. The match statement allows a much more condensed syntax and is much more readable. I can't speak for...

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   In the past, when you wanted to pass a class string to a method, you had to use something like get_class, which always felt a little pointless. The system already knows about the class at the time, as you have already autoloaded it in or created a new instance. Let's look at an example/ This might not be a show-stopper in terms of features, but it ...

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   This feature is something that I wasn't sure I would use until I did. Previously we would always have to replicate things or merge arrays to get what we needed. Now we can just unpack the array, and the behavior will be the same. I use DTOs a lot in my code, and all of them have a method called toArray, which is an easy way for me to transform a DT...

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   What can I say about new constructors that you aren't already imagining? Not much, but I will give it a go. Before PHP 8.1, sometimes you might not be passing in a new instance of a class to a constructor for various reasons, and sometimes you did. It created this situation where you were never really sure if you needed to pass an instance or not. ...

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   I am in love. I won't lie. This was a massive game-changer for me. It allows me to program in immutability easily without having to decrease visibility. Previously I had to change properties that I wanted the public to be protected or private - which meant that I then had to add getters to the class - which felt like adding a boilerplate that reall...

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6. www.php.engineer › operatorsOperators - Modern PHP Tutorial

   www.php.engineer › operators

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   In PHP, operators are symbols that perform operations on one or more values (also known as operands) and return a result. There are several different types of operators in PHP, including: Arithmetic operators: perform basic arithmetic operations. Assignment operators: assign a value to a variable, such as the simple assignment operator.

7. www.geeksforgeeks.org › learn-phpLearn PHP: A Comprehensive Hands-On Tutorial - GeeksforGeeks

   www.geeksforgeeks.org › learn-php

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8. www.php.engineer › what-is-phpWhat is PHP? - Modern PHP Tutorial

   www.php.engineer › what-is-php

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   PHP is an open-source general-purpose scripting language for developing web applications. Whoa! What does all that mean? Let's slowly unpack that definition to fully grasp PHP. First and foremost, open source software, OSS for short, refers to code that has been freely released to the public. Anyone can study, modify, and redistribute the software.

9. www.phptutorial.netPHP Tutorial

   www.phptutorial.net

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   This PHP tutorial helps you learn how to develop dynamic websites and web applications using PHP from scratch. PHP is one of the most popular programming languages for web development. PHP allows you to develop various web applications, including blogs, content management systems (CMS), and online stores. Section 1.

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    www.php.engineer

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    Chapter 6: introduction to object oriented programming. In this chapter, we'll start getting into object-oriented programming, creating objects, understanding properties and methods, and the four principles of OOP. What is Object-Oriented Programming? Creating Objects and Classes; Constructor Method; Null Safe Operator; Namespaces; Using ...