(ii) BASIC syntax---Output statements echo and print

1. Echo Statement

2. Print Statements

The difference between the two

echo-capable of outputting more than one string, no return value

Print-can only output one string and return a value of 1

echo is faster than print at run time because it has no return value.

Echo statement

Echo is a language structure that can be used without parentheses. Echo and Echo ().

<?php echo "Hello world!<br>";    Echo ("Hello world!<br>"); echo "Hello", "world!";? >

The string can contain HTML code that can be parsed normally.

Print statement

Print is also a language structure that can be used without parentheses: print or print () with a return value of 1

<?php print "Hello world!<br>";    Print ("Hello world!<br>"); Print "Hello", "world!";? >

Think: How do I see the print return value?

<?php Echo (print "Hello world!");? >

The return value is 1.

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(ii) BASIC syntax---Output statements echo and print