Yongyao Yan
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Yan's Blog

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Yongyao Yan

Yongyao Yan

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I am a programmer and a technical writer. I love sharing programming skills and knowledge. To find more programming tutorials, please visit my website: https://www.codebilby.com

How to calculate keyword frequency and draw the bar chart in PHP

Jul 11, 20222 min read

This post shows you how to calculate the keyword frequency from text and draw the bar chart by using the JpGraph library. Calculate the keyword...

How to calculate keyword frequency and draw the bar chart in PHP

How to count words in a string in PHP

Jun 29, 20222 min read

By using the function str_word_count(), we can get information about words used in a string. Get the number of words found in a string To find out how...

How to count words in a string in PHP

Create an object from a string variable in PHP

Jun 4, 20222 min read

In PHP, objects can be created from string variables. It provides a very convenient way for you to define rules in text and handle requests...

Create an object from a string variable in PHP

Reverse an array in PHP by using recursion

May 15, 20223 min read

Let's go back to a computer science textbook topic. Show you how to reverse an array in PHP without using any native array functions such as...

Reverse an array in PHP by using recursion

PHP functions strcspn() and strspn()

May 4, 20222 min read

Function strcspn() The function strcspn() finds the length of initial segment not matching mask. In the code snippet below, we want to find the prefix...

PHP functions strcspn() and strspn()

Drawing Dash Lines in PDF by Extending the FPDF Library

Aug 28, 20213 min read

The post Creating PDF Files in PHP by Using the FPDF Library introduces the basic steps of how to create a PDF file by using the free FPDF...

Drawing Dash Lines in PDF by Extending the FPDF Library