PHP regex-从字符串中删除特殊字符

Posted 2021-02-25

This will remove all non-ascii characters / special characters from a string.

//Remove from a single line string
$output = "Likening ‘not-critical’ with";
$output = preg_replace('/[^(x20-x7F)]*/','', $output);
echo $output;
 
//Remove from a multi-line string
$output = "Likening ‘not-critical’ with 
 Likening ‘not-critical’ with 
 Likening ‘not-critical’ with. ' ! -.";
$output = preg_replace('/[^(x20-x7F)x0Ax0D]*/','', $output);
echo $output;