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<?php
$num1 = 30;
$num2 = 40;
if($num1 > $num2){
echo 'Num1 is greater than Num2!';
} else if($num1 == $num2){
echo 'Num1 and Num2 are equal!';
}else{
echo 'Num2 is greater than Num1!';
}
?><?php
$string = 'I am thet naing win';
$find = array('thet', 'naing', 'win');
$replace = array('THET', 'NAING', 'WIN');
$string_new = str_replace($find, $replace, $string);
echo $string_new;
?><?php
$string = 'I am Thet Naing Win. This is PHP Testing and Word position Test. If you are insterested in PHP, please join us!';
$find = 'T';
$find_length = strlen($find);
$offset = 1;
while ($strpos = strpos($string, $find, $offset)){
echo 'The Character <strong>'.$find. '</strong> is found at '.$strpos.'.</br>';
$offset = $strpos + $find_length;
}
?>We can change all characters to lower case by using strtolower. The following code is an example.
<?php
$string = 'I am ThEt NainG WiN!';
$string_low = strtolower($string);
echo $string_low;
?>
We can also change all characters to upper case by using strtoupper. The following is an example.
<?php
$string = 'I am ThEt NAInG win!';
$string_up = strtoupper($string);
echo $string_up;
?><?php
$string = 'I am Thet Naing Win.';
$string_trimmed = rtrim($string);
echo $string_trimmed;
?>
<?php
$string = 'I am Thet Naing Win';
$string_reversed = strrev($string);
echo $string_reversed;
?>
<?php
$string = 'I am Thet Naing Win and who are you?';
$string_word_count = str_word_count($string, 1);
print_r($string_word_count);
?>
<?php
$string = 'I am Thet Naing Win';
$strlen = strlen($string);
echo $strlen;
?>
Write the following code and save it as info.php in C > xampp > htdoc.
<?php
phpinfo();
?>
Open Web Browser and type localhost/info.php in it and press Enter. Then, you will see the php version as the below picture.
We need Apache Service to run php codes. Now I hope you've already installed the Apache Service in your Windows PC. If you have not installed, please click here.
We need Text Editor to write php codes. If you don't have any text Editor, please click here.
If you've completed the above steps. We will start to write php codes.
1. Open your Text Editor (here I use ConText) and create New File.
2. Choose PHP instead of Text files as the below picture.
3. Save that file as test.php in the C > xampp > htdoc.
4. In test.php, write the following codes.
We need Text Editor to write programming codes. ConText is one of the best open source text editors. Please click here to download.
We need Apache service to run php codes. Xampp is the open source software we can use as Apache Server in Windows. Please click here to download.
Before installing Xampp in Windows PC, you better decrease UAC Level and disable Firewall or Antivirus.You can set back default setting after installation.
How to decrease UAC Level
1. Type uac in the search box and press Enter.User Account Control Setting Box will be appeared.
2. Choose Lowest Level and Click Ok.
How to disable Firewall
1. Press Windows and R Keys together at the same time.Run Box will be appeared.
2. Type firewall.cpl in the Run Box and click OK.
2. Click Windows Firewall on or off.
3. Choose Turn off Windows Firewall and click OK.
Then, start to run the exe file you've downloaded and follow the procedures.It will take some time to finish installation.
Now, I hope you've successful installed. Open the Xampp Control Panel. Start Apache and MySQL. You will see as the following picture.
To test Apache Service in Windows,
Open Web Browser and type localhost in it and press Enter. You will as the following picture.
1. To check php version, click PHPInfo.
2. To MySQL Service, click phpMyAdmin.