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In this issue, the editor will bring you about how to use php to replace the link with empty. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

This article operating environment: windows7 system, PHP7.1 version, DELL G3 computer

How does php replace the link to be empty?

Quite simply, the code is as follows:

U = str_replace ("URL", "", url)

The second is the URL, if it is empty, it will not be filled in.

The str_replace () function replaces some characters in the string with other characters (case sensitive).

The function must follow the following rules:

If the search string is an array, it returns the array.

If the search string is an array, it will find and replace each element in the array.

If the array needs to be found and replaced at the same time, and the number of elements that need to be replaced is less than the number of elements found, then the remaining elements will be replaced with an empty string

If you are looking for an array and replacing a string, the alternative string will have an effect on all found values.

Note: this function is case sensitive. Use the str_ireplace () function to perform a case-insensitive search.

Note: this function is binary safe.

Grammar

Str_replace (find,replace,string,count)

Parameters.

Find is required. Specifies the value to look for.

Replace is required. Specifies the value that replaces the value in find.

String is required. Specifies the string to be searched.

Count is optional. A variable that counts the number of substitution.

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