PHP：在字符串中搜索字符串

Question

I want to check whether a string is present in another string, and then take the appropriate action. What is the best way to do this?

For instance; if the string 'europe' is present in 'europeisthebest', then do something.

if ( isIn('europe', 'europeisthebest') == true){
  //do something
}

Thank you a lot! I appreciate all of your answers and time spent helping.

Answer 1

You're looking for strstr() (case sensitive), stristr() (case insenstive), or strpos()

if (stristr('europeisthebest', 'europe')){
  // do something
}

Answer 2

如果您想知道子字符串在字符串中的位置，也可以使用函数strpos（）