Some Important Things of Data Type in PHP
Sample 1 : Which is Faster way to print?
My General Name is Samee Ullah Feroz.My General Company Name is Getacho.
Sample 2 : Rules for Integers
An integer must have at least one digit from 0 to 9.An Integer cann't contain comma, space or blanks.
And Integer must have not a decimal point.
An Integer can be either positive or negative.
Integers can be specified in three formates:
- Decimal (10-based)
- Hexadecimal (16-based-prefixed with 0x)
- Octal (8-based-prefixed with 0)
Sample 3 : Var_dump variable usage
var_dump is a variable to show the integer type, value and size.var_dump also add a break line in output.
var_dump Example:
50
int 50
float 100.5
string 'values' (length=6)
Sample 4 : Floating Points Numbers
float 10.365
float 2400
float 8.0E-5
<html>
<head>
<title>Some Important Things for Data Type: 4th Day Lecture of PHP</title>
</head>
<body>
<h1 align="center">Some Important Things for Data Type in PHP</h1>
<h2 align="left">Sample 1 : Which is Faster way to print?</h2>
<?php
echo "My General Name is Samee Ullah Feroz. <br />"; //It is simple form to print data
echo 'My General Company Name is Getacho.' #it is faster way. because in this it just give print command.
?>
<h2 align="left">Sample 2 : Rules for Integers</h2>
<?php
echo "An integer must have at least one digit from 0 to 9. <br />";
echo "An Integer cann't contain comma, space or blanks. <br />";
echo "And Integer must have not a decimal point. <br />";
echo "An Integer can be either positive or negative. <br />";
echo "Integers can be specified in three formates:<br />";
echo
"<ol>
<li>Decimal (10-based)</li>
<li>Hexadecimal (16-based-prefixed with 0x)</li>
<li>Octal (8-based-prefixed with 0)</li>
</ol>"
?>
<h2 align="left">Sample 3 : Var_dump variable usage</h2>
<?php
echo "var_dump is a variable to show the integer type, value and size. <br />";
echo "var_dump also add a break line in output. <br />";
echo "<b>var_dump Example:</b> <br />";
echo
$a=50;
$b=100.50;
$c="values";
var_dump ($a, $b, $c);
?>
<h2 align="left">Sample 4 : Floating Points Numbers</h2>
<?php
$x = 10.365;
var_dump($x);
echo "<br />";
$x = 2.4e3;
var_dump($x);
echo '<br />'; //I used single quote that you can remember its printing rule
$x = 8E-5;
var_dump($x);
?>
</body>
</html>
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