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How can I remove the NULL character from string

Answer 1

+3 A:

$text = str_replace("\0", "", $text);

will replace all null characters in the $text string. You can also supply arrays for the first two arguments, if you want to do multiple replacements.

Joey 2009-03-13 12:35:26

depending on the encoding (utf-8), this could remove valid characters

ax 2009-03-13 12:40:33

@Johannes Rössel: I added $text= to make code and text match. str_replace does not modify the third argument

phihag 2009-03-13 12:44:43

the code only seems to work when i do this: $text = str_replace("", "", $text);

Benjamin Ortuzar 2009-03-13 12:54:44

ax: UTF-8 encodes every character < 128 as the character itself, so if you want to get rid of \0, you should delete \0. No side-effects there. UTF-16 is a different matter entirely, though, but still I'd expect languages to work on strings as strings and not byte arrays, so it's a moot point

Joey 2009-03-13 16:00:24

Benjamin: If that works, then your problem are probably not null characters but rather un-encoded ampersands. But I'd expect something that builds an XML node from a string to escape characters properly

Joey 2009-03-13 16:03:20

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How can I remove the NULL character from string

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