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This article to share with you is about javascript, php keyword search function how to use the content. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

javascript：

a. Code:

/*@desc： js search function, can be used for keyword matching @param key keyword @param str string to search @return out matching keyword before and after the position */function search(key,str){var min = 0var max = str.lengthvar index = str.indexOf(key)var left = index - 10var right = index + 10if(leftmax){ right = max}var out = str.slice(left,right)return out}

b. Testing:

var str = 'How are you? Where are you? Can I come over and play with you? Why don't you answer me! var res = search(key,str)console.log(res)

c. Output:

Liya? Can I come over and play with you? why didn't you answer me

php：

a. Code:

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