PHP - Output and String Handling
Which of the following is a valid way to use
echo to print multiple strings in PHP?Which of the following is a valid way to use echo to print multiple strings in PHP?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand string concatenation in PHP
PHP uses the dot (.) operator to join strings together.Step 2: Analyze each option
echo "Hello", "World!"; uses commas which echo supports but prints strings separately without concatenation. echo ("Hello" + " World!"); uses + which is invalid for strings in PHP. echo "Hello" . " World!"; correctly uses the dot operator to concatenate strings. echo ["Hello", " World!"]; tries to echo an array, which causes an error.Final Answer:
echo "Hello" . " World!"; -> Option AQuick Check:
String concatenation = dot operator [OK]
Quick Trick: Use dot (.) to join strings in echo [OK]
Common Mistakes:
- Using + instead of . for string concatenation
- Trying to echo arrays directly
- Confusing commas with concatenation
Master "Output and String Handling" in PHP
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