PHP Echo
PHP echo is a language construct that is used to get output. It is used with or without parentheses: echo or echo(). The echo statement can print the string, multi-line strings, escaping characters, variables, array, and results of expressions, etc.
Below is some usage of echo statements in PHP:
1. Display Strings:
Example
<?php
echo "This is Vaidikalaya";
echo("This is Vaidikalaya");
?>
2. Display Multi-Argument Strings:
Example
<?php
echo "One ","Two ","Three!";
?>
3. Display Multi-Line Strings:
Example
<?php
echo "Hello Vaidikalayans
This is echo
with multi-line
";
?>
4. Display Variables:
Example
<?php
$text = "Hello Vaidikalayans";
$num1 = 6;
$num2 = 3;
echo $text."\n";
echo $num1 + $num2;
?>
5. Display Escaping Characters:
Example
<?php
echo "PHP stands for \"Hypertext Preprocessor\" ";
?>
Echo Use Cases:
1. Echo does not return any value:
When storing the echo in a variable then it gives a syntax error which proves that the echo has no return any value.
Example
<?php
$res=echo "Hello Vaidikalaya";
?>
2. Multi-Argument Strings gives error within parentheses:
When using a multi-argument string with parentheses then it gives a syntax error.
Wrong Syntax
<?php
echo("One ","Two ","Three!");
?>
Right Syntax
<?php
echo "One ","Two ","Three";
?>