jayzeng

<?php
// custom error handler to suppress errors
function exception_error_handler($errno, $errstr, $errfile, $errline ) {
    return '';
}

set_error_handler('exception_error_handler');
?>

jayzeng

<?php

class InvalidIpFormatException extends \InvalidArgumentException {}

class InvalidIpRangeException extends \InvalidArgumentException {}

class IpV4Validator
{
    private $_ip;
 

jayzeng

data:text/html, <style%20type%3D"text%2Fcss">%23e%7Bposition%3Aabsolute%3Btop%3A0%3Bright%3A0%3Bbottom%3A0%3Bleft%3A0%3B%7D<%2Fstyle><div%20id%3D"e"><%2Fdiv><script%20src%3D"http%3A%2F%2Fd1n0x3qji82z53.cloudfront.net%2Fsrc-min-noconflict%2Face.js"%20type%3D"text%2Fjavascript"%20charset%3D"utf-8"><%2Fscript><script>var%20e%3Dace.edit("e")%3Be.setTheme("ace%2Ftheme%2Fmonokai")%3Be.getSession().setMode("ace%2Fmode%2Fphp")%3B<%2Fscript>

jayzeng

<?php

// pdo
$pdo = new PDO("mysql:host=localhost;dbname=database", "username", "password");

// mysqli, oo way
$mysqli = new mysqli('localhost', 'username', 'password', 'database');

// mysqli, procedural 
$mysqli = mysqli_connect('localhost', 'username', 'password', 'database');

jayzeng

<?php

// pdo
$params = array(':username' => 'John', ':email' => $mail );
$pdo->prepare('
   SELECT * FROM users
   WHERE username = :username
   AND email = :email');
$pdo->execute($params);

jayzeng

<?php

// init connection
$pdo = new PDO("mysql:host=localhost;dbname=database", "username", "password");

// Bad bad bad!!!
// quote - ecscape + plus quote
$username = $pdo->quote($_GET['user']);
$pdo->query("SELECT * FROM users where username = $username");

jayzeng

// clean language contract
[1..10].each(|i| puts i);

// 
i = 0;
while true do:
    i = i + 1
    if i > 10:
        break
    end

jayzeng

<?php

// hex 
var_dump(0x9fa0ff0b);

// 5.2.1 (32bit)
// PHP truncates the long
int(2147483647)

// 5.2.3+ (32bit)

jayzeng

<?php
// Log down all fatal error
register_shutdown_function( function()  {
    $lastError = error_get_last();

    if( count($lastError) > 0 ) { 
            Logger::log('Fatal error', implode(',', $lastError));
    }      
});

jayzeng

import urllib2
import json
import argparse
import sys

class HealthCheck(object):
    """
        Parse command line argument
    """
    def parse_arg_options(self):