![]() In this example, the string “World” starting from the 7th position is replaced with the string “Universe” with 6 length. This function takes four parameters: the original string, the replacement string, the starting position and the length of the portion to be replaced. This function takes the start and length parameters to return the portion of string. The PHP substr() function is used to extract a Substring from a main string. How to extract substring from a string in PHP Topic: PHP / MySQL Prev Next Answer: Use the PHP substr () function The PHP substr () function can be used to get the substring i.e. You can also use the substr_replace() function to replace a portion of a string with a new string. How to Extract A Substring from A Main String. For example, to extract the last three characters of a string: You can also use negative values for the starting position, in which case the function will start counting from the end of the string. To extract the word “Hello” from the string, you would use the following code: The function takes three parameters: the string, the starting position, and the length of the substring to be extracted.įor example, consider the following string: ![]() In PHP, the substr() function is used to extract a portion of a string. Whether you need to get a specific portion of a string or just want to extract a certain number of characters, substr() is the perfect tool to get the job done. PHP extract substring from strings in text. ![]() Here is an example, that gets the first 3 characters from a. Further, the function is supported by PHP 4 version and above such as ( 5, 6, 7, and 8 ). The function is mainly used to return the specified substring from the start and parameter length. See examples and sample code to help you use this function in your PHP projects. To get the first n characters of a string, we can use the built-in substr() function in PHP. The PHP substring or substr () is a function which is already built-in PHP that can be used to bring out part of the given string. Learn how to use the substr() function in PHP to extract a substring from a string.
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