Detailed explanation of usage examples of substr() function and explode() function in php

This article mainly introduces the usage analysis of substr() and explode() functions in PHP, and describes substr in more detail in the form of examples. () and explode() functions are techniques for processing strings. They are frequently used functions in string operations and have certain practical value. Friends in need can refer to this article

string,start,length): This function takes out length characters from the string starting from the start position of the string. If start is a negative number, then Counting from the end of the string, if the omitted parameter length exists but is a negative number, it means that the penultimate length character is obtained. The example code is as follows:

array separator specifies where to split, string the string to be split, limit optional, the maximum number of array elements, example The code is as follows:

The code is as follows:

abc,[1]=>bck,[2]=>fhq,[3]=>nui) 
?>

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