String adding in PHP

We can add two strings and generate a new string in PHP by using a single dot. This way we can add any number of strings by using " . " ( dot ) in between them. We will learn different types of string addition in PHP. Let us start with simple adding of two strings by using a single dot between them. Here is the example.

$string1="Welcome to";
$string2=" PHP section ";

echo $string;

The out put of the above command will give the full sentence
"Welcome to PHP section ".
Now let us learn how we can add different strings to a common string variable. Here is the code.

$string= " Hello, ";
$string .=" Welcome to ";
$string .=" ";
echo $string;

The above code will print all the strings one after other forming the complete sentence.

We can merge one string inside another string like this.

$string2=" PHP section ";
$string= "Welcome to $string2";
echo $string;

Here the code will display full string with string2 value added at the end. But this way we can't add function inside a string. Let us try to add one function to display present date inside the welcome message. Here like a string we can't add. The following line won't display today's date along with the string. This is not going to work .

$string= "Welcome to $string2 today on date('m/d/y');

We have to modify the above line like this to display current date.

$string= "Welcome to $string2 today on ". date("m/d/y");
echo $string;

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PHP String Functions


Good useful article.

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