<div>
You can write to a file with file_put_contents().<br />
<br />
DATETIME information is available in PHP date() or the DateTime class object.<br />
<br />
Browser and IP are found in $_SERVER and while not 100% reliable they are mostly useful. &nbsp;Use phpinfo() and look at the bottom of the output to find the $_SERVER information.
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You can write to a file with file_put_contents().

DATETIME information is available in PHP date() or the DateTime class object.

Browser and IP are found in $_SERVER and while not 100% reliable they are mostly useful.  Use phpinfo() and look at the bottom of the output to find the $_SERVER information.

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this saves information in a logfile <br />
<br />
thanks
</div>


this saves information in a logfile

thanks

See also [http://php.net/manual/en/function.error-log.php]

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You are welcome - thanks for the points.
</div>


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and thanks for the built in error_log function
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and thanks for the built in error_log function

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<div class="content wysiwyg-content">
using php, <br />
<br />
i want to write <br />
datetime<br />
browser<br />
ip address<br />
<br />
<br />
to a textfile
</div>
</div>


using php, 

i want to write 
datetime
browser
ip address


to a textfile

write logging information to php file

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.