Process completed with exit code 1.

Escaped Mutant for Mutator "MBString": --- Original +++ New @@ @@ public function __construct($str) { $this->str = $str; - $this->byteLen = mb_strlen($str, '8bit'); + $this->byteLen = strlen($str); if (!mb_check_encoding($str, 'UTF-8')) { $this->charLen = 0; } else {

Escaped Mutant for Mutator "DecrementInteger": --- Original +++ New @@ @@ $this->str = $str; $this->byteLen = mb_strlen($str, '8bit'); if (!mb_check_encoding($str, 'UTF-8')) { - $this->charLen = 0; + $this->charLen = -1; } else { $this->charLen = mb_strlen($str, 'UTF-8'); }

Escaped Mutant for Mutator "GreaterThanOrEqualTo": --- Original +++ New @@ @@ */ public function offsetExists($offset) : bool { - return $offset >= 0 && $offset < $this->charLen; + return $offset > 0 && $offset < $this->charLen; } /** * Gets the character at given offset.

Escaped Mutant for Mutator "GreaterThan": --- Original +++ New @@ @@ return null; } $delta = $offset - $this->charIdx; - if ($delta > 0) { + if ($delta >= 0) { // Fast forwarding. $this->byteIdx += strlen(mb_substr(substr($this->str, $this->byteIdx, 4 * $delta), 0, $delta)); $this->charIdx += $delta;

Escaped Mutant for Mutator "IncrementInteger": --- Original +++ New @@ @@ $delta = $offset - $this->charIdx; if ($delta > 0) { // Fast forwarding. - $this->byteIdx += strlen(mb_substr(substr($this->str, $this->byteIdx, 4 * $delta), 0, $delta)); + $this->byteIdx += strlen(mb_substr(substr($this->str, $this->byteIdx, 5 * $delta), 0, $delta)); $this->charIdx += $delta; } elseif ($delta < 0) { // Rewinding.

Escaped Mutant for Mutator "LessThan": --- Original +++ New @@ @@ // Fast forwarding. $this->byteIdx += strlen(mb_substr(substr($this->str, $this->byteIdx, 4 * $delta), 0, $delta)); $this->charIdx += $delta; - } elseif ($delta < 0) { + } elseif ($delta <= 0) { // Rewinding. while ($delta++ < 0) { // We rewind byte by byte and only count characters that are not continuation bytes,

Escaped Mutant for Mutator "GreaterThanOrEqualTo": --- Original +++ New @@ @@ // i.e. ASCII characters and first octets of multibyte characters do { $byte = ord($this->str[--$this->byteIdx]); - } while ($byte >= 128 && $byte < 192); + } while ($byte > 128 && $byte < 192); --$this->charIdx; } }

Escaped Mutant for Mutator "LessThan": --- Original +++ New @@ @@ // i.e. ASCII characters and first octets of multibyte characters do { $byte = ord($this->str[--$this->byteIdx]); - } while ($byte >= 128 && $byte < 192); + } while ($byte >= 128 && $byte <= 192); --$this->charIdx; } }

Escaped Mutant for Mutator "IncrementInteger": --- Original +++ New @@ @@ } } // Fetch the first Unicode character within the next 4 bytes in the string. - return mb_substr(substr($this->str, $this->byteIdx, 4), 0, 1); + return mb_substr(substr($this->str, $this->byteIdx, 5), 0, 1); } /** * Sets the value of a character.