Php defines a function instance with default values for parameter analysis.

This article describes how to define a function with a default value in php. The example shows how to use a function with a default value in php, for more information about how to use php to define a function with default values, see the example in this article. Share it with you for your reference. The specific analysis is as follows:

The default value can be specified for function parameters in php. after the default value is specified, if this parameter is not assigned during call, the default value is used for this parameter.

<? Phpfunction capitalize ($ str, $ each = TRUE) {$ str = strtolower ($ str); if ($ each = TRUE) {$ str = ucwords ($ str);} else {$ str = strtoupper ($ str);} echo ("$ str
");} Capitalize (" hEllo WoRld! "); Capitalize (" hEllo WoRld! ", FALSE);?>

I hope this article will help you with php programming.