PHP String Common Functions Summary

PHP has a lot of functions, string functions are also very many, the following summarizes a few commonly used string functions. Record down for a later flip.

1. String combination/Connection

A>implode () converts the value of a one-dimensional array to a string

B>join () alias implode ()

2. String segmentation

A>explode () combines a string into an array by the specified delimiter. The values in the array are substrings of the string.

B>str_split () combines a string into an array of elements by a specified length.

3. String interception

A>SUBSTR () returns a substring of a string at the specified position and length.

B>STRSTR () intercepts the string after the specified string or the previous string

4. String substitution

A>substr_replace ()

B>str_replace ()

5. String calculations

A>strlen ()

B>strpos ()

C>strrpos ()

PHP String Common Functions Summary