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mb_*_numericentity Fix a code example #4708

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Merged
lacatoire merged 5 commits into from
Sep 3, 2026
Merged

mb_*_numericentity Fix a code example #4708

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a8d1d20
Update mb-decode-numericentity.xml CS
mmalferov May 28, 2025
d760ae2
Update mb-encode-numericentity.xml Fix a code example
mmalferov May 28, 2025
1e0d085
mb-encode-numericentity.xml Ade `role` attr to highlighting
mmalferov May 29, 2025
fe07aee
mb-decode-numericentity.xml Remove the newlines
mmalferov Jun 8, 2026
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mb-encode-numericentity.xml Remove the newlines
mmalferov Jun 8, 2026
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Update mb-decode-numericentity.xml CS
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@mmalferov
mmalferov authored May 28, 2025
commit a8d1d20237a36e51d3d864600ea5e68ef66c812b
116 changes: 64 additions & 52 deletions reference/mbstring/functions/mb-decode-numericentity.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -107,14 +107,17 @@
<programlisting>
<![CDATA[
<?php
$convmap = array (
int start_code1, int end_code1, int offset1, int mask1,
int start_code2, int end_code2, int offset2, int mask2,
// ........
int start_codeN, int end_codeN, int offsetN, int maskN );

$convmap = array(
int start_code1, int end_code1, int offset1, int mask1,
int start_code2, int end_code2, int offset2, int mask2,
// ........
int start_codeN, int end_codeN, int offsetN, int maskN
);
// Specify Unicode value for start_codeN and end_codeN
// Add offsetN to value and take bit-wise 'AND' with maskN,
// then convert value to numeric string reference.

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?>
]]>
</programlisting>
Expand All @@ -127,64 +130,73 @@ $convmap = array (
<programlisting role="php">
<![CDATA[
<?php
function escape_javascript_string($str) {
$map = [
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,0,0, // 49
0,0,0,0,0,0,0,0,1,1,
1,1,1,1,1,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,1,1,1,1,1,1,0,0,0, // 99
0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,0,0,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1, // 149
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1, // 199
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1, // 249
1,1,1,1,1,1,1, // 255
];
// Char encoding is UTF-8
$mblen = mb_strlen($str, 'UTF-8');
$utf32 = bin2hex(mb_convert_encoding($str, 'UTF-32', 'UTF-8'));
for ($i=0, $encoded=''; $i < $mblen; $i++) {
$u = substr($utf32, $i*8, 8);
$v = base_convert($u, 16, 10);
if ($v < 256 && $map[$v]) {
$encoded .= '\\x'.substr($u, 6,2);
} else if ($v == 2028) {
$encoded .= '\\u2028';
} else if ($v == 2029) {
$encoded .= '\\u2029';
} else {
$encoded .= mb_convert_encoding(hex2bin($u), 'UTF-8', 'UTF-32');
}
}
return $encoded;

function escape_javascript_string($str)
{
$map = [
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,0,0, // 49
0,0,0,0,0,0,0,0,1,1,
1,1,1,1,1,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,1,1,1,1,1,1,0,0,0, // 99
0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,
0,0,0,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1, // 149
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1, // 199
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1, // 249
1,1,1,1,1,1,1, // 255
];

// Char encoding is UTF-8
$mblen = mb_strlen($str, 'UTF-8');
$utf32 = bin2hex(mb_convert_encoding($str, 'UTF-32', 'UTF-8'));

for ($i=0, $encoded=''; $i < $mblen; $i++) {
$u = substr($utf32, $i * 8, 8);
$v = base_convert($u, 16, 10);

if ($v < 256 && $map[$v]) {
$encoded .= '\\x' . substr($u, 6,2);
} else if ($v == 2028) {
$encoded .= '\\u2028';
} else if ($v == 2029) {
$encoded .= '\\u2029';
} else {
$encoded .= mb_convert_encoding(hex2bin($u), 'UTF-8', 'UTF-32');
}
}

return $encoded;
}

// Test data
$convmap = [ 0x0, 0xffff, 0, 0xffff ];
$msg = '';

for ($i=0; $i < 1000; $i++) {
// chr() cannot generate correct UTF-8 data larger value than 128, use mb_decode_numericentity().
$msg .= mb_decode_numericentity('&#'.$i.';', $convmap, 'UTF-8');
$msg .= mb_decode_numericentity('&#' . $i . ';', $convmap, 'UTF-8');
}

// var_dump($msg);
var_dump(escape_javascript_string($msg));

?>
]]>
</programlisting>
</example>
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