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PHP basic tutorial - learning summary_PHP tutorial

WBOYOriginal: 2016-07-13 10:07:57850browse

php basic tutorial - learning summary

1. PHP and forms

1.POST method to send data manually:

Some differences between the two:

GET:

1. Gather information and send it as part of the URL

2. The number of transmissions is limited

3. Public transmission, such as password information will be exposed

4. The created form can be added as a bookmark.

POST:

1. The transmitted information cannot be seen by users

Usage example:

html file: ws.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
<body> 



</body> 
</html>

php file: handle.php

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
</head> 

<body>&#160;

<?php

ini_set(&#39;display_errors&#39;, 1);
error_reporting(E_ALL|E_STRICT);
http://blog.csdn.net/u014761420/article/details/<strong><span style="color:#ff0000;">$title=$_POST[&#39;title&#39;];
$name =$_POST[&#39;name&#39;];</span></strong>

print "<p> hello <span style="color:#ff0000;">$title $name</span>";
?>
</body> 
</html>

Enter: myname

Result: hello Mr myname

2.GET transfer data

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
<body> 

<ul>
 <li><span style="color:#ff0000;">"handle.php?name=Charles</span></strong>">Charles</li>
</ul> 


</body> 
</html>

php file: handle.php

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>test</title>
</head> 

<body>&#160;

<?php

ini_set(&#39;display_errors&#39;, 1);
error_reporting(E_ALL|E_STRICT);

http://blog.csdn.net/u014761420/article/details/<strong><span style="color:#ff0000;">$name=$_GET[&#39;name&#39;];
print "<p> hello $name";</span></strong>
?>

</body> 
</html>

2. Related function learning

1. Format values:

round (the number to be formatted, retaining the number of decimal points);

eg: $test=5.555555555; round(test, 2); // 5.55

number_format(number, number of decimal points, symbol to replace decimal point, thousands separator)

eg: number_format("10000000", 2 ,"," ,".");// 10.000.000,00

2. Random function rand()

eg:rand(0, 100);//Generate a random number from 0-100

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PHP basic tutorial - learning summary_PHP tutorial

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