How to replace Chinese characters in php

php method to replace Chinese characters: First use the strpos() function to find the position where the Chinese character appears in another string. If the Chinese character cannot be found, return false; then use the substr_replace() function to replace the Chinese character. Just replace the characters.

strpos() returns the position of the first occurrence of a string in another string, or FALSE if the string is not found.

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Syntax:

strpos(string,find,start)

Parameters:

• string Required. Specifies the string to be searched for.​

• #find Required. Specifies the characters to search for.

• start Optional. Specifies the location from which to start the search.

substr_replace() function replaces part of a string with another string and returns the replaced string. If string is an array, the array is returned.

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Grammar:

substr_replace(string,replacement,start,length)

Implementation code:

$words = ["我", "你", "他", "她"];//过滤库
$sentence = "我和你一起去他家找她";//待过滤的句子
foreach($words as $word)//遍历过滤库的词
{
$len = strlen($word);//获取过滤词的长度
$pos = strpos($sentence,$word);//寻找过滤词的位置
$sentence = substr_replace($sentence,'', $pos, $len); 
}
echo $sentence;

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