This file is indexed.

/usr/share/php/Zend/Stdlib/ArrayUtils.php is in php-zend-stdlib 2.3.3-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

namespace Zend\Stdlib;

use Traversable;

/**
 * Utility class for testing and manipulation of PHP arrays.
 *
 * Declared abstract, as we have no need for instantiation.
 */
abstract class ArrayUtils
{
    /**
     * Test whether an array contains one or more string keys
     *
     * @param  mixed $value
     * @param  bool  $allowEmpty    Should an empty array() return true
     * @return bool
     */
    public static function hasStringKeys($value, $allowEmpty = false)
    {
        if (!is_array($value)) {
            return false;
        }

        if (!$value) {
            return $allowEmpty;
        }

        return count(array_filter(array_keys($value), 'is_string')) > 0;
    }

    /**
     * Test whether an array contains one or more integer keys
     *
     * @param  mixed $value
     * @param  bool  $allowEmpty    Should an empty array() return true
     * @return bool
     */
    public static function hasIntegerKeys($value, $allowEmpty = false)
    {
        if (!is_array($value)) {
            return false;
        }

        if (!$value) {
            return $allowEmpty;
        }

        return count(array_filter(array_keys($value), 'is_int')) > 0;
    }

    /**
     * Test whether an array contains one or more numeric keys.
     *
     * A numeric key can be one of the following:
     * - an integer 1,
     * - a string with a number '20'
     * - a string with negative number: '-1000'
     * - a float: 2.2120, -78.150999
     * - a string with float:  '4000.99999', '-10.10'
     *
     * @param  mixed $value
     * @param  bool  $allowEmpty    Should an empty array() return true
     * @return bool
     */
    public static function hasNumericKeys($value, $allowEmpty = false)
    {
        if (!is_array($value)) {
            return false;
        }

        if (!$value) {
            return $allowEmpty;
        }

        return count(array_filter(array_keys($value), 'is_numeric')) > 0;
    }

    /**
     * Test whether an array is a list
     *
     * A list is a collection of values assigned to continuous integer keys
     * starting at 0 and ending at count() - 1.
     *
     * For example:
     * <code>
     * $list = array('a', 'b', 'c', 'd');
     * $list = array(
     *     0 => 'foo',
     *     1 => 'bar',
     *     2 => array('foo' => 'baz'),
     * );
     * </code>
     *
     * @param  mixed $value
     * @param  bool  $allowEmpty    Is an empty list a valid list?
     * @return bool
     */
    public static function isList($value, $allowEmpty = false)
    {
        if (!is_array($value)) {
            return false;
        }

        if (!$value) {
            return $allowEmpty;
        }

        return (array_values($value) === $value);
    }

    /**
     * Test whether an array is a hash table.
     *
     * An array is a hash table if:
     *
     * 1. Contains one or more non-integer keys, or
     * 2. Integer keys are non-continuous or misaligned (not starting with 0)
     *
     * For example:
     * <code>
     * $hash = array(
     *     'foo' => 15,
     *     'bar' => false,
     * );
     * $hash = array(
     *     1995  => 'Birth of PHP',
     *     2009  => 'PHP 5.3.0',
     *     2012  => 'PHP 5.4.0',
     * );
     * $hash = array(
     *     'formElement,
     *     'options' => array( 'debug' => true ),
     * );
     * </code>
     *
     * @param  mixed $value
     * @param  bool  $allowEmpty    Is an empty array() a valid hash table?
     * @return bool
     */
    public static function isHashTable($value, $allowEmpty = false)
    {
        if (!is_array($value)) {
            return false;
        }

        if (!$value) {
            return $allowEmpty;
        }

        return (array_values($value) !== $value);
    }

    /**
     * Checks if a value exists in an array.
     *
     * Due to "foo" == 0 === TRUE with in_array when strict = false, an option
     * has been added to prevent this. When $strict = 0/false, the most secure
     * non-strict check is implemented. if $strict = -1, the default in_array
     * non-strict behaviour is used.
     *
     * @param mixed $needle
     * @param array $haystack
     * @param int|bool $strict
     * @return bool
     */
    public static function inArray($needle, array $haystack, $strict = false)
    {
        if (!$strict) {
            if (is_int($needle) || is_float($needle)) {
                $needle = (string) $needle;
            }
            if (is_string($needle)) {
                foreach ($haystack as &$h) {
                    if (is_int($h) || is_float($h)) {
                        $h = (string) $h;
                    }
                }
            }
        }
        return in_array($needle, $haystack, $strict);
    }

    /**
     * Convert an iterator to an array.
     *
     * Converts an iterator to an array. The $recursive flag, on by default,
     * hints whether or not you want to do so recursively.
     *
     * @param  array|Traversable  $iterator     The array or Traversable object to convert
     * @param  bool               $recursive    Recursively check all nested structures
     * @throws Exception\InvalidArgumentException if $iterator is not an array or a Traversable object
     * @return array
     */
    public static function iteratorToArray($iterator, $recursive = true)
    {
        if (!is_array($iterator) && !$iterator instanceof Traversable) {
            throw new Exception\InvalidArgumentException(__METHOD__ . ' expects an array or Traversable object');
        }

        if (!$recursive) {
            if (is_array($iterator)) {
                return $iterator;
            }

            return iterator_to_array($iterator);
        }

        if (method_exists($iterator, 'toArray')) {
            return $iterator->toArray();
        }

        $array = array();
        foreach ($iterator as $key => $value) {
            if (is_scalar($value)) {
                $array[$key] = $value;
                continue;
            }

            if ($value instanceof Traversable) {
                $array[$key] = static::iteratorToArray($value, $recursive);
                continue;
            }

            if (is_array($value)) {
                $array[$key] = static::iteratorToArray($value, $recursive);
                continue;
            }

            $array[$key] = $value;
        }

        return $array;
    }

    /**
     * Merge two arrays together.
     *
     * If an integer key exists in both arrays and preserveNumericKeys is false, the value
     * from the second array will be appended to the first array. If both values are arrays, they
     * are merged together, else the value of the second array overwrites the one of the first array.
     *
     * @param  array $a
     * @param  array $b
     * @param  bool  $preserveNumericKeys
     * @return array
     */
    public static function merge(array $a, array $b, $preserveNumericKeys = false)
    {
        foreach ($b as $key => $value) {
            if (array_key_exists($key, $a)) {
                if (is_int($key) && !$preserveNumericKeys) {
                    $a[] = $value;
                } elseif (is_array($value) && is_array($a[$key])) {
                    $a[$key] = static::merge($a[$key], $value, $preserveNumericKeys);
                } else {
                    $a[$key] = $value;
                }
            } else {
                $a[$key] = $value;
            }
        }

        return $a;
    }
}