The following table provides summary statistics for permanent job vacancies with a requirement for PHP 4 skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited PHP 4 over the 3 months to 22 June 2017 with a comparison to the same period in the previous 2 years.

PHP 4
UK
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 856 929 980
Rank change year-on-year +73 +51  
Permanent jobs citing PHP 4 18 18 8
As % of all permanent IT jobs advertised in the UK 0.020% 0.018% 0.007%
As % of the Programming Languages category 0.036% 0.035% 0.014%
Number of salaries quoted 18 13 7
Median salary £36,250 £57,500 £41,000
Median salary % change year-on-year -36.95% +40.24%  
90% offered a salary of more than £32,500 £40,000 £25,700
10% offered a salary of more than £55,000 £67,500 £45,000
UK excluding London median salary £36,250 £62,500 £45,000
% change year-on-year -42.00% +38.88%  

PHP 4 is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for programming language skills.

Programming Language Skills
UK
Permanent job vacancies with a requirement for programming language skills 49780 52059 57223
As % of all permanent IT job vacancies advertised in the UK 56.04% 52.78% 51.59%
Number of salaries quoted 41779 45080 48809
Median salary £47,500 £47,500 £45,000
Median salary % change year-on-year - +5.55%  
90% offered a salary of more than £30,000 £30,000 £30,000
10% offered a salary of more than £75,000 £70,000 £70,000
UK excluding London median salary £42,500 £41,000 £40,000
% change year-on-year +3.65% +2.50%  

PHP 4
Job Vacancy Trend

The job posting trend of jobs advertised citing PHP 4 as a proportion of all permanent or contract IT jobs with a match in the Programming Languages category.

Job vacancy trend for PHP 4 in the UK

PHP 4
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing PHP 4.

Salary trend for PHP 4 in the UK

PHP 4
Salary Histogram

The salary distribution of IT jobs citing PHP 4 over the 3 months to 22 June 2017.

Salary histogram for PHP 4 in the UK

PHP 4
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing PHP 4 within the UK over the 3 months to 22 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +53 18 £36,250 -42.00%
Surrey +41 13 £32,500 -51.85%
South East +41 13 £32,500 -51.85%
Dorking -2 13 £32,500 -51.85%
North West - 3 £40,000 -
Staffordshire +20 2 £50,000 -
West Midlands +18 2 £50,000 -
Lichfield +7 2 £50,000 -
Runcorn - 2 £40,000 -
Cheshire - 2 £40,000 -
Manchester - 1 £50,000 -

For the 6 months to 22 June 2017, IT jobs citing PHP 4 also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for PHP 4.

1 18 (100.00%) PHP
1 18 (100.00%) Web Development
1 18 (100.00%) PHP 5
2 16 (88.89%) MySQL
2 16 (88.89%) Linux
2 16 (88.89%) JavaScript
3 13 (72.22%) Mathematics
3 13 (72.22%) CakePHP
3 13 (72.22%) OOP
3 13 (72.22%) Marketing
3 13 (72.22%) MVC
4 10 (55.56%) Agile Software Development
4 10 (55.56%) CSS
5 6 (33.33%) Automotive
5 6 (33.33%) SQL
6 5 (27.78%) Unit Testing
7 4 (22.22%) JSON
7 4 (22.22%) Backbone.js
8 3 (16.67%) GitHub
8 3 (16.67%) Shopify
8 3 (16.67%) Degree
8 3 (16.67%) Computer Science
8 3 (16.67%) Zend
8 3 (16.67%) jQuery
8 3 (16.67%) Magento
8 3 (16.67%) HTML
8 3 (16.67%) Web Services
8 3 (16.67%) SQL Server
8 3 (16.67%) Apache
8 3 (16.67%) XHTML

PHP 4
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 3 (16.67%) Apache
1 3 (16.67%) CMS
2 2 (11.11%) Elasticsearch
Business Applications
1 3 (16.67%) Magento
1 3 (16.67%) Shopify
Cloud Services
1 3 (16.67%) GitHub
2 2 (11.11%) Amazon AWS
2 2 (11.11%) Google Cloud Platform
Database & Business Intelligence
1 16 (88.89%) MySQL
2 3 (16.67%) SQL Server
Development Applications
1 2 (11.11%) Git (software)
General
1 13 (72.22%) Marketing
2 6 (33.33%) Automotive
3 3 (16.67%) Retail
Job Titles
1 17 (94.44%) Developer
2 13 (72.22%) JavaScript Developer
2 13 (72.22%) MySQL Developer
2 13 (72.22%) PHP Developer
2 13 (72.22%) PHP MySQL Developer
3 11 (61.11%) Web Developer
4 9 (50.00%) PHP Web Developer
5 4 (22.22%) Full Stack Developer
6 2 (11.11%) Full Stack Web Developer
6 2 (11.11%) Web Engineer
7 1 (5.56%) Developer/Software Engineer
7 1 (5.56%) Java Engineer
7 1 (5.56%) Software Developer
7 1 (5.56%) Software Engineer
Libraries, Frameworks & Software Standards
1 13 (72.22%) CakePHP
2 10 (55.56%) CSS
3 4 (22.22%) Backbone.js
3 4 (22.22%) JSON
4 3 (16.67%) HTML
4 3 (16.67%) jQuery
4 3 (16.67%) LAMP
4 3 (16.67%) Web Services
4 3 (16.67%) XHTML
5 2 (11.11%) Memcached
Miscellaneous
1 3 (16.67%) Computer Science
Operating Systems
1 16 (88.89%) Linux
Processes & Methodologies
1 18 (100.00%) Web Development
2 13 (72.22%) Mathematics
2 13 (72.22%) MVC
2 13 (72.22%) OOP
3 10 (55.56%) Agile Software Development
4 5 (27.78%) Unit Testing
5 3 (16.67%) E-Commerce
5 3 (16.67%) Scrum
6 2 (11.11%) Integration Testing
6 2 (11.11%) Open Source
6 2 (11.11%) Pay per click
6 2 (11.11%) Software Engineering
6 2 (11.11%) Test Automation
Programming Languages
1 18 (100.00%) PHP
1 18 (100.00%) PHP 5
2 16 (88.89%) JavaScript
3 6 (33.33%) SQL
4 2 (11.11%) Go
4 2 (11.11%) Java
4 2 (11.11%) Python
Qualifications
1 3 (16.67%) Degree
2 2 (11.11%) Sun Certification
System Software
1 2 (11.11%) Docker
Systems Management
1 2 (11.11%) Kubernetes
Vendors
1 3 (16.67%) Zend
2 2 (11.11%) Google