[Note] CGI & PHP-PHP source code

Ec (2); CGI & amp; PHP transmits the data environment variable REQUEST_METHODGET to CGI: <ahref"cgi-binmyprog.exe? Lnameblow & amp; fnamejoe & quot; & gt; QUERY_STRINGPOST: By for script ec (2); script

CGI & PHP

Transmit data to CGI
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Environment Variable REQUEST_METHOD
GET:

QUERY_STRING
POST: data transmitted by form
-The environmental variable CONTENT_LENGTH indicates the length.
-The CGI program reads data from stdin.
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Other useful Environment Variables
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Software Version of HTTP_USER_AGENT Browser
IP address of the REMOTE_ADDRESS Browser
REMOTE_HOST name of the browser
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CGI output data
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Non-analysis Header
-HTTP/1.0 200 OK
-Server: NCSA/1.0a6
-Content-type: text/html
-...
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Content type: MIME text/css
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Application
Audio
Image
Text
Video
Multipart

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PHP
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Basic syntax
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