@ 2018-06-03T17:14:34Z <?php
function braceCheck($values) {
for ($i = 0; $i <= count($values) - 1; $i++) {
$braces = str_split($values[$i]);
$values[$i] = isValid($braces);
}
return $values;
}
function isValid($braces) {
$available = ['{' => '}', '(' => ')', '[' => ']'];
$opened = [];
$closed = [];
for ($i = 0; $i <= count($braces) - 1; $i++) {
if (in_array($braces[$i], array_keys($available))) {
$opened[] = $braces[$i];
continue;
}
$closed[] = $braces[$i];
}
var_dump($opened, $closed);
return match($available, $opened, $closed);
}
function match($available, $opened, $closed) {
$last_open = $opened[count($opened) - 1];
$opened = array_values($opened);
$closed = array_values($closed);
/*
echo 'LAST OPEN: ' . $last_open . PHP_EOL;
echo 'AVAILABLE: ' . $available[$last_open] . PHP_EOL;
echo 'FIRST CLOSED: ' . $closed[0] . PHP_EOL;
*/
if (count($opened) !== count($closed)) {
echo 'count off';
return 'NO';
}
// Check for invalid nesting or non-consecutive braces
if ($available[$last_open] !== $closed[0] && $available[$opened[0]] !== $closed[0]) {
return 'NO';
}
if (count($opened) > 0) {
$result = match(
$available,
array_slice($opened, 0, -1),
array_slice($closed, 1)
);
}
return 'YES';
}
$values = ['{}()[]', '{]}['];
var_dump(braceCheck($values));
?>
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Output for 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.4 , 8.3.6 Parse error: syntax error, unexpected token "," in /in/Sbgpk on line 26
Process exited with code 255 . Output for 8.3.5 Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Parse error: syntax error, unexpected token "," in /in/Sbgpk on line 26
Process exited with code 255 . Output for 7.1.0 - 7.1.20 , 7.2.0 - 7.2.33 , 7.3.16 - 7.3.31 , 7.4.0 - 7.4.33 array(3) {
[0]=>
string(1) "{"
[1]=>
string(1) "("
[2]=>
string(1) "["
}
array(3) {
[0]=>
string(1) "}"
[1]=>
string(1) ")"
[2]=>
string(1) "]"
}
array(2) {
[0]=>
string(1) "{"
[1]=>
string(1) "["
}
array(2) {
[0]=>
string(1) "]"
[1]=>
string(1) "}"
}
Notice: Undefined offset: -1 in /in/Sbgpk on line 31
Notice: Undefined index: in /in/Sbgpk on line 49
Notice: Undefined offset: 0 in /in/Sbgpk on line 49
array(2) {
[0]=>
string(3) "YES"
[1]=>
string(3) "YES"
}
Output for 7.3.32 - 7.3.33 array(3) {
[0]=>
string(1) "{"
[1]=>
string(1) "("
[2]=>
string(1) "["
}
array(3) {
[0]=>
string(1) "}"
[1]=>
string(1) ")"
[2]=>
string(1) "]"
}
array(2) {
[0]=>
string(1) "{"
[1]=>
string(1) "["
}
array(2) {
[0]=>
string(1) "]"
[1]=>
string(1) "}"
}
array(2) {
[0]=>
string(3) "YES"
[1]=>
string(3) "YES"
}
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