‘echo’ function is used to print data to console.
Syntax
echo data_to_print;
Whatever follows echo statement is printed to the console by php.
Example
echo "Hello World";
If you want to concatenate information from multiple places use . (dot) operator.
echo "Hello Mr." . $name . ", you are " . $age . " years old";
echo_demo.php
#!/usr/bin/php
<?php
echo "Hello World";
$age = 23;
$name = "Krishna";
echo "Hello Mr." . $name . ", you are " . $age . " years old";
?>
Output
$./echo_demo.php
Hello WorldHello Mr.Krishna, you are 23 years old
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