CODEWITHSUNDEEP
phpcodeigniterpreg-match
Tomislav Tomi Nikolic
Tomislav Tomi Nikolic

Reputation: 638

Compilation failed: invalid range in character class at offset 4

I use CI_Minifier and have problems after I have updated my PHP.

Now I receive an error when I use the preg_match function.

if (!preg_match("/^[\w-:]+$/", $tag)) { #error line
    $node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until('<>');
    if ($this->char === '<') {
        $this->link_nodes($node, false);

        return true;
    }

    if ($this->char==='>') {
        $node->_[HDOM_INFO_TEXT] .= '>';
    }
    $this->link_nodes($node, false);
    $this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next

    return true;
}

The error is:

Compilation failed: invalid range in character class at offset 4

Upvotes: 3

Views: 10092

Answers (1)

Toto
Toto

Reputation: 91488

Escape the hyphen:

if (!preg_match("/^[\w\-:]+$/", $tag)) {

or put it at the beginning of character class:

if (!preg_match("/^[-\w:]+$/", $tag)) {

or at the end:

if (!preg_match("/^[\w:-]+$/", $tag)) {

Upvotes: 12

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