Php string replacement function substr_replace () usage instance _ PHP Tutorial

Php string replacement function substr_replace () usage instance. Php string replacement function substr_replace () usage example this article mainly introduces the usage of php string replacement function substr_replace (). The example analyzes the usage skills of the substr_replace function in php. php string replacement function substr_replace () usage example

This article mainly introduces the usage of the php string replacement function substr_replace (). The example analyzes the usage skills of the substr_replace function in php, which has some reference value. For more information, see

This example describes the usage of the php string replacement function substr_replace. Share it with you for your reference. The specific analysis is as follows:

Substr_replace is used to replace the substring at the specified position in the specified string.

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$ String = "Warning: System will shutdown in NN minutes! "; $ Pos = strpos ($ string, "NN "); Print (substr_replace ($ string, "15", $ pos, 2). "\ n "); Sleep (10*60 ); Print (substr_replace ($ string, "5", $ pos, 2). "\ n "); ?>

Enter the following result in the above code:

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Warning: System will shutdown in 15 minutes! (10 minutes later) Warning: System will shutdown in 5 minutes!

I hope this article will help you with php programming.

Examples of usage () This article mainly introduces the usage of the php string replacement function substr_replace (). The example analyzes the usage skills of the substr_replace function in php...