How to hire PHP developers
2020欧洲杯体育投注平台It’s the “P” in the LAMP (Linux, Apache, MySQL, PHP) technology stack. It can be found on the back end of a majority of websites. It’s PHP, the traditional language of choice for back-end web development. If you’re looking for a freelancer who can help you set up the back end of your website, a PHP developer can help.
2020欧洲杯体育投注平台So how do you find a PHP developer? What follows are some tips on how you can find top PHP developers on Upwork.
How to shortlist PHP development professionals
2020欧洲杯体育投注平台As you’re browsing available PHP development consultants, it can be helpful to develop a shortlist of the professionals you may want to interview. You can screen profiles on criteria such as:
- Technology fit. You want a PHP developer who is familiar with the libraries and frameworks found in your technology stack.
- Developer workflow. Familiarity with any project management tools, test suites, or version control systems that you use is a plus.
- Feedback. Check reviews from past clients for glowing testimonials or red flags that can tell you what it’s like to work with a particular PHP developer.
How to write an effective PHP development job post
2020欧洲杯体育投注平台What are your project requirements? Do you already have an existing app and are looking to add new features that require updated back-end support? That would be an entirely different scope than a few customizations to a WordPress site. Or, maybe you need a PHP developer for an extended engagement to make a series of updates. It all boils down to what you need, the experience required, and how quickly you need it done.
2020欧洲杯体育投注平台The key here is writing a clear, detailed project description that potential developers can review to decide if their skills and experience are a good match, or if the project is one that interests them. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.
2020欧洲杯体育投注平台An effective PHP development job post should include:
- Scope of work: From unit tests to new features, list all the deliverables you’ll need.
- Project length: Your job post should indicate whether this is a smaller or larger project.
- Background: If you prefer experience working with certain industries, software, or technologies, mention this here.
- Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.
PHP DEVELOPERS FAQ
What is a PHP developer?
A PHP developer is simply a back-end developer who is experienced in using the PHP programming language, so they’re often simply called “back-end engineers.” They’re able to take a client’s specifications and turn them into a workable, tangible product that runs on a web server. PHP developers code the functionality that brings an app to life. Collaborating with designers, they ensure that the front-end application is appealing to users. You may find that some PHP developers have front-end design skills, but oftentimes, they work with UI and UX designers to create a user interface that’s engaging and supported by solid back-end functionality.
Here’s a quick overview of the skills you should look for in PHP development professionals:
- PHP frameworks such as Laravel, CakePHP, and Zend
- Database technologies such as MySQL, Oracle, and PostgreSQL
- Web servers such as Apache and NGINX
- Server OSs such as Linux and Windows
- CMSs (content management systems) such as WordPress, Drupal, and Joomla
PHP development consultants help businesses create the business logic that powers their web applications behind the scenes.
Why hire PHP developers?
2020欧洲杯体育投注平台If your site is like a majority of those around the web running on Linux or WordPress, chances are you need a skilled PHP developer now and again to update and maintain your codebase. Or, if you’re starting from scratch, you might be considering the LAMP stack, putting this dynamic back-end language at the top of your list.
How much does it cost to hire a PHP developer?
A veteran PHP developer can help you estimate a budget pretty easily, as long as you provide as much detail as you can. Developers bidding on your project can get a better idea of what needs to be done and estimate far more accurately.
Cost factor #1: Project scope
If you already wrote your project description, good news: You’ve already tackled the first major cost factor by identifying the overall scope of your project. The first variable to consider when determining scope is the nature of the work that needs to be done.
Not all PHP projects are created equal. There’s a big difference in scope between writing some custom scripts for a WordPress site and coding a new social media app with integrated APIs and databases on the backend from scratch. If you need a PHP developer on hand to sporadically handle tickets, that might warrant a different type of engagement.
Time2020欧洲杯体育投注平台 is the other variable you have to consider when determining scope, as it will determine how you’ll handle milestone payments for developmental phases (if you’re dealing with fixed price contracts), or the overall cost of a project if you’re paying hourly wages. That social media app project mentioned above could take months, whereas a couple scripts to support some new front-end functionality could take mere days.
Cost factor #2: PHP developer experience
PHP is one of the most widely used languages on the web, so there’s a broad talent pool to choose from. This might mean you need to take extra care in your vetting and interviewing process to ensure you’re getting a developer of the caliber you need.
Choosing the right level of expertise for the job is closely tied to how well you determined the scope of your project. You wouldn’t need a senior-level PHP developer for a more simple yet time-consuming project, for example. Hiring a less experienced freelancer who can whip up simple scripts at a lower rate will get the job done and save you a lot of money.
The following table breaks down the rates of the typical types of PHP developers you can find on Upwork.
Typical Rates Charged by PHP Developers*
|Type of PHP Developer||Description||Average Hourly Rate|
|Basic Back-end PHP||Back-end fundamentals (RESTful API’s, Lambda functions). Databases like MySQL. Content Management Systems like WordPress. Technology stack like LAMP (Linux, Apache, MySQL, PHP).||$25-50+|
|Intermediate – Advanced||Beyond fundamentals, specialization in a back-end server environment like AWS (Amazon Web Services), also skilled in one or more chosen PHP frameworks like Laravel, Symfony, or Cake.||$50-100+|
|Full Stack Developer||Mix of front-end and back-end technology expertise. Expertise working with Twig, Blade, and ReactPHP.||$75-100+|
*Reflects rates charged by freelancers on Upwork in North America with over 1,000 hours and 90% success rate.
Cost factor #3: Location of development talent
Location is another variable that can impact a freelance developer’s cost. A big advantage to working with freelancers on Upwork is the access to a talent pool that spans the globe. It also means you must factor hidden costs such as language barriers, time zones, and the logistics of managing a remote team into your budget.
Common mistakes in PHP development
PHP is one of the most common languages on the web, so as a developer, it helps to have it in your tool kit. You don’t have to know it perfectly to dive into the language—PHP is similar to C and Java in some ways, so if you know these two languages, you can jump into it more easily. However, when learning any new language, chances are you’ll make some mistakes as you’re getting up to speed. Here’s a list of the most common mistakes PHP developers may face and tips to help avoid them.
1. Not securing SQL code
Some of the top cyber attacks on the web are SQL injections. In a SQL injection attack, a hacker will insert SQL code you haven’t authorized into your database, causing it to execute commands like leaking, altering, or deleting data. However, there are ways that better PHP programming can minimize the risk of SQL injection attacks.
PHP is the backbone for several out-of-the-box solutions such as WordPress. When writing new extensions and plugins for WordPress sites, developers will likely create inline SQL statements. These statements are built from the front-end and sent back to the SQL database. If these statements are malformed, you run the risk of leaving your site open to SQL injection.
2020欧洲杯体育投注平台There are two ways to avoid this. The first way (and the most preferred) is by using prepared statements. The second is by using parameterized queries. These are considered better methods because the tick mark the opens and closes a string value in SQL is processed as a literal and not an opening or terminating character.
2. Suppressing errors
PHP has different error levels, but you can manually suppress them in your code. This is useful if you have errors that aren’t critical and don’t cause any serious effects. For instance, you could suppress warning messages regarding PHP versions.
The “@” symbol is used to suppress errors when you don’t need them, but use it with caution— it can sometimes cause some unforeseen issues. Suppose you have an include file that isn’t necessary when running the application. It could be optional for users who only have a specific component in their browser.
This error suppression should be used sparingly as you can have errors that aren’t being logged and won’t be found until something critical occurs in the application. In the long run, it’s better to handle errors rather than suppress them for convenience.
3. Printing data directly from user input
This mistake is somewhat directly related to the first mistake we listed. The first mistake—not securing SQL code—can lead to SQL injection security flaws. This mistake references cross-site scripting (XSS) security flaws that can occur when the developer prints data directly from a user.
Suppose you have a form input text box named “firstname.” You want your script to display “Hello, $firstname” to the viewer. However, what happens if a user inputs “<
4. Don’t forget to remove development configurations
It’s important for any developer to have a development environment—a staging environment that mimics the production environment, which houses the live code. In some cases, a developer might be rushed and forget to remove development variables and configurations, then upload these by accident to the production environment. This can be a disaster for a live application.
2020欧洲杯体育投注平台Many new developers try to skip the staging environment and go straight from development to production in an effort to save time. This is a mistake because staging can help you identify problems that you didn’t catch in development (remember, staging mimics production). If you accidentally forget to remove configurations or don’t find bugs until staging, you can still catch them before they hit the production environment.
Always have a staging environment, and use it even if you’re just making minimal changes. It’s also a good idea to have QA testers test the code in staging before it’s moved to production.
5. Accidentally using the assignment operator rather than the comparison for a condition
2020欧洲杯体育投注平台It’s easy to accidentally use the wrong operator when writing condition statements. After all, developers can spend several hours assigning values to variables. However, if you accidentally use the assignment operator instead of the conditional comparison, you run the risk of introducing bugs.
2020欧洲杯体育投注平台To avoid this type of mistake, some developers prefer to use “yoda syntax.” Yoda syntax switches the order of the condition and value. With this, if you accidentally use the assignment operator instead of a comparison, the compiler will give you an error and you can correct it.
6. Forgetting to run backups
2020欧洲杯体育投注平台It might seem like an easy step, but many developers have poor backup practices. You don’t need to back up every hour, but you should run backups each day if you do significant work on a project. Just remember that your backups save you hours of recoding should you lose your data in the event your drive fails.
If you have a difficult time figuring out a problem in your code, back up the system so you don’t lose the solution—and hours of work—and have to recode it. A backup can also save you from missing a deadline if something happens to go awry.
You should also create backups for your clients in the rare case that a client has a critical failure and no backup. It’s a nice gesture, and you can help your client out of a potentially sticky situation.