It’s fair to say I read a lot. I love books and always have a few stacked up next to my bed for a quick (or long) read before I fall off to sleep. I also love books for work, since although there is a huge amount of resources on the web, published books distill expert knowledge, are peer-reviewed and are a great way to get a good overview of a particular subject.
Viewing images on the command line and the “No identify available” error
I’ve been testing a website that generates images on the fly and in the past had used the less command to view the file contents, this helped see when PHP errors had unfortunately made their way into an image file.
However, sometimes when viewing a file I got the following error returned:
No identify available Install ImageMagick or GraphicsMagick to browse images
I’m pretty sure I worked this one out a few years ago, but had obviously forgotten. Turns out you can’t view binary files via a command like less!
The right way to view an image file is a command such as xxd. To view the top of a file (which usually points in the direction of the file format) use a command such as:
xxd /path/to/file.jpg | head
This command works just as well for text files, so will still pick up if PHP errors are inside the image file instead of the correct binary data.
Saving this one for later so I don’t forget again!
Sherlock, 1895
Well that was fun. A new episode of Sherlock is always something to savour, the feature length intellectually savvy TV series from the BBC that had a special pre-season four episode tonight.
Warning: here be spoilers..
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New Year 2016
As I welcome the new year and type these words my kids are getting dressed upstairs, ready for a refreshing midday walk along Grantchester Meadows to lunch at the tearooms (with promises of scones). It’s been a busy year for me, but a very relaxing Christmas break, spent at home with the family just having fun. Which is my ideal Christmas, quite frankly.
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7/7
After viewing the coverage of the 7/7 anniversary on the BBC I can’t believe it’s been 10 years since that awful day in London. So much has happened in the decade since, though in some ways the same fears and worries still exist.
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PHP and me
PHP has just reached an incredible milestone, it’s 20 years old! On the 8th June, 1995, Rasmus Lerdorf released PHP 1.0. Now, 20 years later, PHP 7 is on the brink of being released and the language is stronger than its ever been before. With all the #20yearsofPHP stories around the internet I thought I’d add my own experiences and thoughts on how PHP has affected me.
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New Year 2015
Another year, another blog post. It seems I only have the inclination to write as the new year comes in – probably just a symptom of being too busy!