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Escape characters are used to represent characters that are difficult or impossible to type directly in a string, or to insert special characters within a string. These escape characters are typically represented with a backslash (\) followed by a character or a sequence.
Here’s a list of commonly used escape sequences in PHP:
| Escape Sequence | Description | Example | 
|---|---|---|
| \' | To include single quotes inside a string | |
| \" | To include double quotes inside a string | |
| \\ | To include a literal backslash ( | |
| \n | To insert newline characters ( | |
| \r | Moves the cursor to the start of the line | |
| \t | It inserts a horizontal tab space | |
| \f | Form feed(Rarely used) | "Text\fEnd" | 
| \xXX | Hexadecimal character (XX is a two-digit hex number) | |
| \u{XXXX} | Unicode escape (for characters above 255) | echo "Hello \u{1F600}";
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