PHP字符串用空格替换制表符，不使用正则表达式

Question

How do I use str_replace to replace tabs with spaces in PHP? I need to do so without using regular expressions.

$find = array('');//use what here?
$replace = array(' ');
$string = str_replace($find,$replace,$string);

Answer 1

尝试-

$string = str_replace("\t", " ", $string);

Answer 2

The escape sequence for a tab character in PHP (as it is in many other languages) is \\t . Try this:

$find = array("\t");
$replace = array(' ');
$string = str_replace($find,$replace,$string);

Answer 3

You have to use the \\t string. Usually you can use these special control characters with the backslash, such as \\n for "line feed", \\r for "carriage return", etc. This is true for most of the common programming languages.

$find = array("\t"); //use \t here!
$replace = array(' ');
$string = str_replace($find,$replace,$string);