You have a string $data = "\t Example Text \t" with tabs, newlines, and spaces around it. Which PHP function call will remove all these whitespace characters from both ends?

hard📝 Application Q15 of 15

PHP - String Functions

You have a string

$data = "\t
  Example Text  
\t"

with tabs, newlines, and spaces around it. Which PHP function call will remove all these whitespace characters from both ends?

Atrim($data, " \t\n")

Bltrim($data, " \t")

Crtrim($data)

Dtrim($data)

Step-by-Step Solution

Solution:

Step 1: Understand default trim() behavior
By default, trim() removes spaces, tabs, newlines, carriage returns, and some other whitespace characters from both ends.
Step 2: Check the character mask in options
trim($data, " \t\n") explicitly specifies space, tab, and newline characters to remove, but the default trim() already removes these and more, so trim($data) is sufficient and preferred.
Step 3: Analyze other options
rtrim() and ltrim() remove only one side, so they won't clean both ends.
Final Answer:
trim($data) -> Option D
Quick Check:
Use trim() to remove all whitespace from both ends [OK]

Quick Trick: Use trim() to remove all whitespace including tabs and newlines [OK]

Common Mistakes:

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