Pass a fourth parameter to the mail() function with the header information.
&ght;?php $to = "jane@example.com"; $subject = "Hello World!"; $body = "This will be sent from email-addr@example.com"; $headers = "From: email-addr@example.com\r\nX-Mailer: php"; mail($to, $subject, $body, $headers);
Output .sql file for MySQL but without the drop table syntax before table name use the –skip-add-drop-table flag
mysqldump -u root -p database_name --skip-add-drop-table --skip-lock-tables > database_name.sql
If you want to insert a datetime that matches the default mysql datetime type format use this
date('Y-m-d H:i:s');
Simple script for posting a valid response back to Paypal service after a sale is completed using the Paypal Instant Checkout payment method.
<?php
// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
// post back to PayPal system to validate
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);
// assign posted variables to local variables
$item_name = $_POST['item_name'];
$item_number = $_POST['item_number'];
$payment_status = $_POST['payment_status'];
$payment_amount = $_POST['mc_gross'];
$payment_currency = $_POST['mc_currency'];
$txn_id = $_POST['txn_id'];
$receiver_email = $_POST['receiver_email'];
$payer_email = $_POST['payer_email'];
if (!$fp) {
// HTTP ERROR
} else {
fputs ($fp, $header . $req);
while (!feof($fp)) {
$res = fgets ($fp, 1024);
if (strcmp ($res, "VERIFIED") == 0) {
// check the payment_status is Completed
// check that txn_id has not been previously processed
// check that receiver_email is your Primary PayPal email
// check that payment_amount/payment_currency are correct
// process payment
} else if (strcmp ($res, "INVALID") == 0) {
// log for manual investigation
}
}
fclose ($fp);
}
I grabbed this script from Paypal Docs… I never can find the info I need w/in their site so I’m posting here for reference. https://www.paypal.com/us/cgi-bin/webscr?cmd=p/pdn/ipn-codesamples-pop-outside#php
Listing all files and directories using PHP 5.
<?php
$files = array(); $dir = dir(".");
while(false!==($file=$dir->read())):
if(($file{0}!=".") && ($file{0}!="~") && (substr($file, -3)!="LCK")
&& ($file!=basename($_SERVER["PHP_SELF"]))):
$files[$file] = stat($file); //
endif;
endwhile;
$dir->close(); ksort($files); ?>
<table border=1 cellpadding=5>
<tr><th>Name</th><th>Size</th><th>Date</th></tr>
<?php foreach($files as $name => $stats): ?>
<tr>
<td><?php print $name;?></td>
<td><?php print $stats['size']; ?></td>
<td><?php print date("m-d-Y h:ia", $stats['mtime']); ?></td>
</tr>
<?php endforeach; ?></table>
Function for highlighting text/strings in PHP.
$content = file_get_contents("http://php.net/");
print highlight("PHP", $content);
function highlight($match, $string){
return str_ireplace($match, "<span style='background:yellow'>$match</span>", $string);
}
Will output something like this
Highlighted PHP.Net
***Notice all the styles are gone 
… would need to parse the document body to maintain stylesheet and other ‘php’ strings that might be in resources paths.
I was in the market for a simple php script to replace hrefs with their absolute paths from scraped web pages. I wrote one myself. I used the preg_replace_callback function so that I could pass the parsed results as a single variable.
<?php
$domain = "http://seanbehan.com";
$pattern = "/\bhref=[\"|'](.*?)[\"|']/";
$string = file_get_contents($domain);
// prepends relative links w/ $domain skips returns the match if already absolute
function replace_href($match){
global $domain;
if(substr($match[1], 0, 7)!=="http://" && substr($match[1],0,8)!=="https://"){
return "href='".$domain.$match[1]."'";
} else {
return "href='".$match[1]."'s";
}
}
print preg_replace_callback($pattern, "replace_href", $string);
What is Rack?
Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single method call.
- Rack API Docs
Create and name your file config.ru If rack isn’t installed get it with this command
gem install rack
In your config.ru file
require 'rubygems'
require 'rack'
class HelloRack
def call(env)
[200, {"Content-Type" => "text/html"}, "Hello Rack!"]
end
end
Rack::Handler::Mongrel.run HelloRack.new, 
ort => 8888
I took the survey!
<%= hidden_field_tag :authenticity_token, form_authenticity_token %>
About
Sean Behan is an entrepreneur and web application developer specializing in Ruby on Rails
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