PHP Data Types
Variable can be store data - data can be string ,integer,float,boolean ,anything data store in variable
PHP support following data types
- String
- Interger
- Float ( float number also call double number )
- Boolean
- Array
- Object
- Null
- Resourse
PHP String
String can be sequence of charectors or word like "Hello Word"
Tips : PHP string written inside double or single quotes
Example
<?php
$str = "Hey how are you";
$str1 = "I am fine ";
echo $str;
echo "<br>";
echo $str1;
// You can check what type of data by var_dump()
echo "<br>";
echo var_dump($str);
?>
Try Code
Tips : If you write variable inside string you should be write string double quotes
Example
<?php
$a=15;
echo "The number is : $a";
//if you try to write single quotes it consider as like text
?>
Result
The number is :15
PHP Interger
PHP interger is a number like 1,0,10,452, .......
Tips : You can not write integer within single or double quotes
Tips : If you write interger within single or double quotes PHP consider as string
Tips :Interger does not have decimal point
Example
<?php
$a = 12;
$b = 8;
// Adding variable
$z = $a + $b;
echo $z;
// You can check data type by var_dump()
echo "<br>";
echo var_dump($z);
?>
Result
20
int(20)
PHP Float Number
Float number is decimal number like as 0.3 , 42.54 ,600.45
Example
<?php
$a = 42.15;
$b = 46.02;
echo var_dump($a);
echo "<br>";
echo var_dump($b);
?>
Result
flot(42.15)
float(46.02)
PHP Boolean
Boolen can be true or false
Example
<?php
$x = true;
$y = false;
echo var_dump($x);
echo "<br>";
echo var_dump($y);
?>
Result
bool(true)
bool(false)
PHP Array
Array is a data structure that store an arbitrary number of data in a single variable
Example
<?php
$arry = ["apple","pears","orange"];
echo $arry[1];
echo "<br>";
echo var_dump($arry);
?>
Result
pears
array(3){[0]=>string(5) "apple" [1]=>string(5) "pears" [2]=>string(6) "orange"}
