php echo / print output function to compare

First, the difference between the two

supports multiple echo output string, separated by a comma (,), only support a Print output string

echo faster than print output

echo does not return a value, print the return value is always 1

 

Second, the use

echo

is a language construct echo function, may be used with () or without parentheses

Example:

echo ( "This is an output string");

echo "This is an output string";

 

Use the same print and echo