php function parameters

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Php function Parameters

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<?php 
function printName($x)
{
	if(is_numeric($x))
	{
	return 1;
	}
	else
	{
	return $x;
	}

}

$ret=printName("abc");

if($ret==1)
{
echo "<p style='color:red'>Name must be string</p>";
}
else
{
echo "<p style='color:blue'>Welcome ".$ret."</p>";
}


?>

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<?php

function printName($x)

{

if(is_numeric($x))

{

return 1;

}

else

{

return $x;

}

}

$ret=printName("abc");

if($ret==1)

{

echo "<p style='color:red'>Name must be string</p>";

}

else

{

echo "<p style='color:blue'>Welcome ".$ret."</p>";

}

?>

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