How to Trim Strings in PHP

Trimming Strings to Remove a Specific Number of Characters

1. You can trim the string from the left side by only specifying an offset and omitting the $length parameter when calling substr() . ...
2. You can trim the string from the right side by setting the value of $offset to 0 and making $length negative.

1. What is TRIM function in PHP?
2. Why TRIM () function is used in PHP?
3. What is trim function?
4. What is whitespace in PHP?
5. How PHP files can be accessed?
6. How many types of functions are available in PHP?
7. How remove all special characters from a string in PHP?
8. Which of the following is correct about PHP?
9. Which one is not a data type in PHP?
10. How do you use the trim method?
11. What is a trim function in Excel?
12. Why is trim not working?

What is TRIM function in PHP?

Definition and Usage. The trim() function removes whitespace and other predefined characters from both sides of a string. Related functions: ltrim() - Removes whitespace or other predefined characters from the left side of a string.

Why TRIM () function is used in PHP?

The trim() function is used to remove the white spaces and other predefined characters from the left and right sides of a string. The string to be trimmed. Specifies the character(s) to remove. Without this remove the following " " an ordinary space.

What is trim function?

The TRIM function is used to “normalize” all spacing. TRIM automatically strips space at the start and end of a given string and leaves just one space between all words inside the string. It takes care of extra spaces caused by empty cells. SUBSTITUTE is used to replace each space (” “) with a comma and space (“, “).

What is whitespace in PHP?

The ctype_space() function in PHP check for whitespace character(s). It returns TRUE if every character in text creates some sort of white space, FALSE otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters.

How PHP files can be accessed?

If you installed a web server in your computer, usually the root of its web folder can be accessed by typing http://localhost in the web browser. So, if you placed a file called hello. php inside its web folder, you can run that file by calling http://localhost/hello.php.

How many types of functions are available in PHP?

Types of Functions in PHP. There are two types of functions as: Internal (built-in) Functions. User Defined Functions.

How remove all special characters from a string in PHP?

function clean($string) $string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens. $string = preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars. return preg_replace('/-+/', '-', $string); // Replaces multiple hyphens with single one.

Which of the following is correct about PHP?

Q 1 - Which of the following is correct about PHP? A - PHP is a recursive acronym for "PHP: Hypertext Preprocessor". B - PHP is a server side scripting language that is embedded in HTML. C - It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites.

Which one is not a data type in PHP?

3. Which one is not a data type in PHP? Explanation: The void is not a data type in PHP.

How do you use the trim method?

trim()is a built-in function that eliminates leading and trailing spaces. The Unicode value of space character is '\u0020'. The trim() method in java checks this Unicode value before and after the string, if it exists then removes the spaces and returns the omitted string.

What is a trim function in Excel?

Description. Removes all spaces from text except for single spaces between words. Use TRIM on text that you have received from another application that may have irregular spacing. Important: The TRIM function was designed to trim the 7-bit ASCII space character (value 32) from text.

Why is trim not working?

One space character commonly used in Web pages that TRIM() will not remove is the non-breaking space. If you have imported or copied data from Web pages you may not be able to remove the extra spaces with the TRIM() function if they are created by non-breaking spaces.