PHP - String Functions
What will be the output of this PHP code?
$str = "xxHello Worldxx"; echo trim($str, "x");
What will be the output of this PHP code?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand trim() with character mask
trim() removes specified characters from both ends of the string.Step 2: Apply trim() to the string
Characters "x" at the start and end are removed, so "xxHello Worldxx" becomes "Hello World".Final Answer:
Hello World -> Option BQuick Check:
trim() with "x" removes x's both ends [OK]
Quick Trick: trim() removes specified chars from both ends [OK]
Common Mistakes:
- Thinking trim() removes characters inside the string
- Confusing trim() with rtrim() or ltrim()
- Not specifying the character mask correctly
Master "String Functions" in PHP
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