PHP - String Functions
You want to safely replace all spaces in a string with underscores in PHP. Which code snippet correctly does this?
You want to safely replace all spaces in a string with underscores in PHP. Which code snippet correctly does this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the goal
We want to replace all spaces (' ') with underscores ('_') in the string.Step 2: Identify the correct function
str_replace(' ', '_', $original) replaces all spaces with underscores safely.Step 3: Check other options
substr_replace is for replacing part by position, not all spaces; strtoupper changes case; trim removes spaces only at ends.Final Answer:
$new = str_replace(' ', '_', $original); -> Option AQuick Check:
str_replace() replaces all occurrences [OK]
Quick Trick: Use str_replace() to swap all spaces with underscores [OK]
Common Mistakes:
- Using substr_replace which replaces by position, not all spaces
- Using strtoupper which changes case, not characters
- Using trim which only removes spaces at string ends
Master "String Functions" in PHP
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