How does php replace the link to be empty

Editor to share with you how to replace the php link is empty, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to understand it!

In PHP, you can use the str_replace function to replace the link with an empty code, such as "str_replace (" URL ",", url); "; the function is to replace some characters in the string with other characters.

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

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