Jeder Website-Betreiber hat ein großes Ziel: Mehr Besucher auf seine Website zu bekommen. Viele überlassen es dabei den Suchmaschinen, den Sinn der Website zu verstehen.
Mit JSON-LD helfen wir den Suchmaschinen, die Inhalte einer Website zu verstehen, zu indexieren und zu aggregieren. JSON-LD in der Suchmaschinenoptimierung weiterlesen
Every website needs to implement readable URLs for internal linking. When you are using a blogging tool like WordPress or a CMS like Typo3, you automatically get the URL slug generator built in.
But sometimes, you are developing your own software and are in need of a function that simply generates a slug for you.
Search no more, because here it is: the PHP function to generate slugs for you.
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function slugify($input, $word_delimiter='-') { $slug = iconv('UTF-8', 'ASCII//TRANSLIT', $input); $slug = preg_replace("/[^a-zA-Z0-9\/_|+ -]/", '', $slug); $slug = strtolower(trim($slug, '-')); $slug = preg_replace("/[\/_|+ -]+/", $word_delimiter, $slug); return $slug; } $slugString = slugify("This is just a small test for a slug creation"); echo $slugString; // returns : this-is-just-a-small-test-for-a-slug-creation |
This PHP function takes a simple string as first parameter, which will be turned into your slug. In this example, we are using the string This is just a small test for a slug creation .
The function slugify then returns a nice, readable slug for you.
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this-is-just-a-small-test-for-a-slug-creation |
If you want to use another delimiter, simply pass it as the second parameter to the function.
I’m using html2pdf to create a PDF document from a HTML source with JavaScript. One problem I have encountered is very blurry text in the output PDF document.
I have tried fiddling with the DPI settings of html2canvas, but to no avail. Solved: html2pdf blurry text in PDF weiterlesen
Here’s a simple one-line script to find all the big directories on your Mac OSX
Simply copy/paste this to your terminal:
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du -k | awk '$1 > 500000' |
This will list all large dirctories with a size of more than 500 MB.
In a recent project I needed to add header and footer text (like page count) to every single generated html2pdf / jsPDF page.
There are a lot of instructions on the web, but none of those are really doing what I wanted.
Basically, I needed to use the callback function of html2pdf to loop over the total pages, and then access that single page to add text to it.
So the first step is to use the callback function of html2pdf :
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html2pdf(content, { margin: 10, filename: "my.pdf", image: {type: 'jpeg', quality: 1}, html2canvas: {dpi: 72, letterRendering: true}, jsPDF: {unit: 'mm', format: 'a4', orientation: 'landscape'}, pdfCallback: pdfCallback }) |
And within the callback function, I am looping over the pages of the generated document. You can find the total number of pages within the returned jsPDF-Object which is called pdfObject in my example.
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function pdfCallback(pdfObject) { var number_of_pages = pdfObject.internal.getNumberOfPages() var pdf_pages = pdfObject.internal.pages var myFooter = "Footer info" for (var i = 1; i < pdf_pages.length; i++) { // We are telling our pdfObject that we are now working on this page pdfObject.setPage(i) // The 10,200 value is only for A4 landscape. You need to define your own for other page sizes pdfObject.text(myFooter, 10, 200) } } |
Using this code you can simply add a header and a footer text to each page of the generated PDF document.
To add a header text, you can simply add the following line to the above code.
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pdfObject.text("my header text", 10, 10) |
This will add the text „my header text“ at the position x = 10, y = 10 to every page of your PDF document.
