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Most people do not understand the knowledge points of this article "php string how to replace a character", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "php string how to replace a character" article.

Replace 1 character method: 1, with "str_replace (" single character "," replacement value ", string)" statement, can be case-sensitive replacement of a specified single character; 2, with "substr_replace (string," replacement value ", start position, 1)" statement, you can replace a character from the specified position.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

The method of replacing 1 character with php string:

1. Use the str_replace () function

The str_replace () function can replace a specified single character case-sensitive.

Note: PHP also has a str_ireplace () function that is similar to str_replace (), but is not case-sensitive.

2. Use the substr_replace () function

The substr_replace () function can replace a character from a specified position.

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