Code Duplication    Length = 4-4 lines in 3 locations

src/wp-includes/class-phpmailer.php 3 locations

@@ 2127-2130 (lines=4) @@
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        $result = '';
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        $ismultipart = true;
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        switch ($this->message_type) {
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            case 'inline':
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                $result .= $this->headerLine('Content-Type', 'multipart/related;');
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                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
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                break;
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            case 'attach':
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            case 'inline_attach':
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            case 'alt_attach':
@@ 2134-2137 (lines=4) @@
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            case 'attach':
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            case 'inline_attach':
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            case 'alt_attach':
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            case 'alt_inline_attach':
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                $result .= $this->headerLine('Content-Type', 'multipart/mixed;');
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                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
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                break;
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            case 'alt':
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            case 'alt_inline':
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                $result .= $this->headerLine('Content-Type', 'multipart/alternative;');
@@ 2139-2142 (lines=4) @@
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                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
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                break;
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            case 'alt':
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            case 'alt_inline':
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                $result .= $this->headerLine('Content-Type', 'multipart/alternative;');
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                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
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                break;
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            default:
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                // Catches case 'plain': and case '':
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                $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet);