String Interpolation (Double Quotes):
When using double-quoted strings, PHP will interpolate variables and special sequences. This means if you include a $variableName inside a doublequoted string, it will be replaced with the variable’s value. Curly braces can be used for complex expressions or when adjacent characters would confuse the parser. Single-quoted strings do not interpolate.
$name = "Alice";
echo "Hello, $name!"; // Outputs: Hello, Alice!
echo "1 + 1 = ${1+1}"; // Outputs: 1 + 1 = 2 (curly braces
around expression)
echo 'Hello, $name!'; // Outputs: Hello, $name! (no
interpolation in single quotes)
Branislav (NoOneNeo) Paunovic
Essential PHP S&S Elements
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String Interpolation (Double Quotes):
When using double-quoted strings, PHP will interpolate variables and special sequences. This means if you include a $variableName inside a doublequoted string, it will be replaced with the variable’s value. Curly braces can be used for complex expressions or when adjacent characters would confuse the parser. Single-quoted strings do not interpolate.
$name = "Alice";
echo "Hello, $name!"; // Outputs: Hello, Alice!
echo "1 + 1 = ${1+1}"; // Outputs: 1 + 1 = 2 (curly braces
around expression)
echo 'Hello, $name!'; // Outputs: Hello, $name! (no
interpolation in single quotes)
1 week ago | [YT] | 0