Uncovering the Differences Between echo and print in PHP
While both echo and print serve the purpose of displaying output in PHP, they exhibit subtle yet important distinctions.
Speed:
Echo is marginally faster than print as it doesn't set a return value. However, this difference is often negligible.
Expression:
Unlike echo, print functions as an expression, allowing it to be integrated into more complex expressions. For example:
$ret = print "Hello World"; // $ret will be 1
Parameters:
Echo allows multiple parameters without parentheses, which are concatenated:
echo "and a ", 1, 2, 3; // Outputs "and a 1 2 3"
Print, on the other hand, can only accept a single parameter:
print "and a 123"; // Outputs "and a 123" print "and a 123"; // Outputs "and a 123"
Summary:
In general, echo is preferred for its speed and simplicity in outputting data. However, if the functionality of print, such as its ability to be used as an expression or take comma-separated arguments, is required, then it should be employed.
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