What are comments in PHP?
A comment in PHP code is a line that is not executed as a part of the program. Its only purpose is to be read by someone who is looking at the code. Comments can be used to: Let others understand your code.
Which symbol is used for comments in PHP?
Answer: Use the Syntax “// text” and “/* text */”
Comments are usually written within the block of PHP code to explain the functionality of the code.
Is Hash a comment in PHP?
Hash ‘#’ appears to remain as a comment option by default by not being deprecated.
What are the main types of comment used in PHP?
PHP supports two types of comments:
- One-line comments.
- Multi-line comments.
What is the variable symbol in PHP programming?
In PHP, a variable is declared using $ sign followed by variable name. The main way to store information in the middle of a PHP program is by using a variable. Here are the most important things to know about variables in PHP. All variables in PHP are denoted with a leading dollar sign ($).
What is single line comment in PHP?
The single line comment tells the interpreter to ignore everything that occurs on that line to the right of the comment. To do a single line comment type “//” or “#” and all text to the right will be ignored by PHP interpreter.
What is the symbol for comment?
Comment symbols. Two ampersands (&&) can also be used for an end-of-line comment, but they are usually seen in older code. If an asterisk (*) is the first character in a statement, the entire line is considered a comment.
Which symbol is used for comments?
‘#’ is used to comment a line.
How do you enter a comment in a program?
A comment starts with a slash asterisk /* and ends with a asterisk slash */ and can be anywhere in your program. Comments can span several lines within your C program. Comments are typically added directly above the related C source code.
What does hash means in PHP?
PHPProgrammingServer Side Programming. A hash function is any function that can be used to map data of arbitrary size to data of a fixed size. The values returned by a hash function are called hash values, hash codes, digests, or simply hashes.
How do you comment out in HTML?
HTML comment Tag: Main Tips
- The <! — –> is an HTML comment tag.
- To comment out in HTML, insert information between <! — and –> tags (browsers won’t show these notes).
- Commenting in HTML allows developers to leave notes about their code, its functionality or to indicate necessary changes for the future.
Can a PHP variable start with a number?
Rules for PHP variables: A variable starts with the $ sign, followed by the name of the variable. A variable name must start with a letter or the underscore character. A variable name cannot start with a number.
What is $_ POST in PHP?
PHP $_POST is a PHP super global variable which is used to collect form data after submitting an HTML form with method=”post”. $_POST is also widely used to pass variables. The example below shows a form with an input field and a submit button.
What are data types in PHP?
PHP supports the following data types:
- Float (floating point numbers – also called double)
What is form method in PHP?
PHP form action attribute is used to specify where the data is sent to be processed. Superglobals $_POST and $_GET are used to gather data from PHP forms. GET method is used for non-sensitive data and allows bookmarking pages. POST method is used for sensitive data as it is considered more secure.