How does php replace part of a string – PHP problem

How to replace part of the string in php: first create a PHP sample file; then use the “str_replace” function to replace the specified string.

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PHP replaces the specified string

Use str_replace to replace the specified character String

$param = & # 39; Banana peel is what rubbish & # 39;;
 $pattOne = [
             & # 39; What rubbish & # 39;,
             & # 39; What rubbish & # 39;,
             & # 39; what kind of garbage & # 39;,
             & # 39; What kind of rubbish & # 39;,
             & # 39; what kind of garbage & # 39;,
             & # 39; what kind of garbage & # 39;,
  ];
  $new_param = str_replace($pattone, '*', $param);

$param = ' banana peel is  What kind of rubbish';
 $patttwo = [ //Put the words with more words in front to match first
             & # 39; Is it & # 39;,
             & # 39; Garbage & # 39;,
             & # 39; Does not belong to & # 39;,
             & # 39; Does it count & # 39;,
             'Which kind',
             'Which category',
             'Which',
             & # 39; Which type & # 39;,
             & # 39; belongs to & # 39;,
             'A',
             'Trash',
             & # 39; what & # 39;,
             & # 39; Count & # 39;,
             & # 39; what & # 39;,
             'is',
         ];
         $new_param = str_replace($patttwo, & # 39; * & # 39;, $param);

Use the regular method, the string function is faster than the regular

$param = 'What kind of garbage is a banana peel?';
 $patt = '/Is it|Does not belong to|Does it count|Garbage|Yes|Say|What|What|Belongs|Which category/';
 $new_param = preg_replace($patt, '*', $param);

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