PHP STRING SINGLE VS DOUBLE QUOTES
PHP string single vs double quotes learn befora that we will learn about string. What is String ?
A string is sequence of characters like "Kumar Atul Jaiswal" or "Hello world" Etc i.e. used to store and manipulate text.
For more information Click Here :- String
There are four ways to specify string in PHP.
- Single syntax
- Double syntax
- Heredoc syntax
- Newdoc syntax
Single Quoted String
we can create a PHP string by single quote. Here is the example below and it's a easiest way.
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Single Quote String </title>
</head>
<body>
<h1> </h1>
<?php
$str = 'Kumar Atul jaiswal within a single quote';
<html>
<head>
<title> PHP Single Quote String </title>
</head>
<body>
<h1> </h1>
<?php
$str = 'Kumar Atul jaiswal within a single quote';
echo $str;
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Single Quotes </title>
</head>
<body>
<h1> </h1>
<?php
$str = 'Kumar Atul jaiswal multiple line text within a single quote';
$str1 = 'using double "Quote' directly inside single quoted string';
$str2 = 'Using escape sequences \n in single quoted string' ';
$str3 = 'using single quote \'my self kumar Atul jaiswal\' \\backslash ';
<html>
<head>
<title> PHP Single Quotes </title>
</head>
<body>
<h1> </h1>
<?php
$str = 'Kumar Atul jaiswal multiple line text within a single quote';
$str1 = 'using double "Quote' directly inside single quoted string';
$str2 = 'Using escape sequences \n in single quoted string' ';
$str3 = 'using single quote \'my self kumar Atul jaiswal\' \\backslash ';
echo "$str <br/> $str1 </br> </br> $str2 <br/> $str3 ";
Kumar Atul jaiswal multiple line text within a single quote
using double "Quote' directly inside single quoted string
Using escape sequences \n in single quoted string
using single quote \'my self kumar Atul jaiswal\' \backslash
Now we will print a Number by single quote
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Single Quotes </title>
</head>
<body>
<h1> </h1>
<?php
$num2 = 10;
echo 'trying print a variable of $num2 ';
<html>
<head>
<title> PHP Single Quotes </title>
</head>
<body>
<h1> </h1>
<?php
$num2 = 10;
echo 'trying print a variable of $num2 ';
Double Quoted string
In PHP, we can specify string through enclosing text within double quote also. But escape sequences and variables will be interpreted using double quote PHP strings.
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Double Quotes String </title>
</head>
<body>
<h1> </h1>
<?php
$str = "Kumar Atul jaiswal within a double quote";
<html>
<head>
<title> PHP Double Quotes String </title>
</head>
<body>
<h1> </h1>
<?php
$str = "Kumar Atul jaiswal within a double quote";
echo $str;
Kumar Atul jaiswal within a double quote
NOTE :-Now , we can use double quote directly inside double Quoted string but What Happened Next ? lets see the example below
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Data types String </title>
</head>
<body>
<h1> </h1>
<?php
$str = "Using double "quote" directly inside double quoted string";
<html>
<head>
<title> PHP Data types String </title>
</head>
<body>
<h1> </h1>
<?php
$str = "Using double "quote" directly inside double quoted string";
echo $str;
Parse error: syntax error, unexpected 'quote' (T_STRING) in C:\xampp\htdocs\double.php on line 24
We can store multiple line text, special characters and escape sequences in a double quoted PHP string.
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Double Quotes String </title>
</head>
<body>
<h1> </h1>
<?php
$str = "Kumar Atul jaiswal multiple line text within a double quote";
$str1 = "Using escape sequences \n in double quoted string";
$str2 = "Using double \"quote\" with backslash inside double quoted string";
<html>
<head>
<title> PHP Double Quotes String </title>
</head>
<body>
<h1> </h1>
<?php
$str = "Kumar Atul jaiswal multiple line text within a double quote";
$str1 = "Using escape sequences \n in double quoted string";
$str2 = "Using double \"quote\" with backslash inside double quoted string";
echo "$str <br/> $str1 </br> $str2 ";
Kumar Atul jaiswal multiple line text within a double quote
Using escape sequences \n in double quoted string'
Using double \"quote\" with backslash inside double quoted string
Now we will print a Number by double quote
Example
<!DOCTYPE html>
<html>
<head>
<title> PHP Double Quotes String </title>
</head>
<body>
<h1> </h1>
<?php
$num2 = 50
echo "Number is : $num2 ";
<html>
<head>
<title> PHP Double Quotes String </title>
</head>
<body>
<h1> </h1>
<?php
$num2 = 50
echo "Number is : $num2 ";
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