What is a string literal in PHP?

What is a string literal in PHP?

A string literal is the notation for representing a string value within the text of a computer program. In PHP, strings can be created with single quotes, double quotes or using the heredoc or the nowdoc syntax. literals.php.

How do you declare a PHP integer variable as I?

Rules for PHP variables:

1. A variable starts with the $ sign, followed by the name of the variable.
2. A variable name must start with a letter or the underscore character.
3. A variable name cannot start with a number.
4. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )

What does int mean in PHP?

(int) converts a value to an integer. $ php test.php integer.

What is the full form of PHP?

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.

What can you do with a string literal in PHP?

Heredoc lets you do something that’s harder to do with a quoted string literal. It lets you define a block of text as literal. By default, PHP will process a heredoc like it would a double-quoted string literal, while nowdoc – a single quoted string.

What is the definition of an integer in PHP?

Integers An integer is a number of the set ℤ = {…, -2, -1, 0, 1, 2.}. Integers can be specified in decimal (base 10), hexadecimal (base 16), octal (base 8) or binary (base 2) notation. To explicitly convert a value to integer, use either the (int) or (integer) casts.

Can You coerce the wrong type into a PHP function?

By default, PHP will coerce values of the wrong type into the expected scalar type declaration if possible. For example, a function that is given an int for a parameter that expects a string will get a variable of type string. It is possible to enable strict mode on a per-file basis.

What is the definition of a string in PHP?

The string in PHP is implemented as an array of bytes and an integer indicating the length of the buffer. It has no information about how those bytes translate to characters, leaving that task to the programmer. There are no limitations on the values the string can be composed of; in particular, bytes with value