1 | <?php |
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2 | |||
3 | declare(strict_types=1); |
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4 | defined('BASEPATH') or exit('No direct script access allowed'); |
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5 | |||
6 | class JSONP |
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7 | { |
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8 | |||
9 | private $data = null; |
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10 | private $buffer = null; |
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11 | private $pool = null; |
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12 | private $poolKey = null; |
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13 | |||
14 | const FIELD_REGEX = "/\w+/"; |
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15 | const ARRAY_REGEX = "/^\w+\[/"; |
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16 | const ALL_ARRAY_REGEX = "/^\w+\[\*\]/"; |
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17 | const SPECIFIC_ARRAY_REGEX = "/^\w+\[\d+\]/"; |
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18 | const RANGE_ARRAY_REGEX = "/^\w+\[(\d|):(\d|)\]/"; |
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19 | |||
20 | /** |
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21 | * [parse description] |
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22 | * @param [type] $data [description] |
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23 | * @return bool [description] |
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24 | */ |
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25 | public function parse(&$data): bool |
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26 | { |
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27 | if (is_scalar($data)) { |
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28 | $this->data = json_decode($data); |
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29 | if ($this->data == null || !is_object($this->data)) { |
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30 | $this->data = null; |
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31 | return false; |
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32 | } |
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33 | return true; |
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34 | } |
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35 | if (is_array($data)) { |
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36 | $this->data = &$data; |
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37 | //var_dump($this->data); |
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38 | return true; |
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39 | } |
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40 | return false; |
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41 | } |
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42 | /** |
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43 | * [set description] |
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44 | * @param string $path [description] |
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45 | * @param [type] $value [description] |
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46 | */ |
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47 | public function set(string $path, $value): void |
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48 | { |
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49 | $this->run_json_path($path); |
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50 | if ($this->pool == null) $this->buffer = $value; |
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51 | |||
52 | if ($this->poolKey == null) { |
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53 | for ($x = 0; count($this->pool); $x++) { |
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54 | $this->pool[array_keys($this->pool)[$x]] = $value; |
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55 | } |
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56 | } |
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57 | |||
58 | if (is_scalar($this->poolKey)) { |
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59 | $values = []; |
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60 | $this->recursive_scalar_key_build($values, $this->pool); |
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61 | //return $values; |
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62 | } |
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63 | } |
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64 | /** |
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65 | * [get description] |
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66 | * @param string $path [description] |
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67 | * @return [type] [description] |
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68 | */ |
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69 | public function get(string $path) |
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70 | { |
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71 | $this->run_json_path($path); |
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72 | |||
73 | if ($this->pool == null) return $this->buffer; |
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74 | |||
75 | if ($this->poolKey == null) return $this->pool; |
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76 | |||
77 | if (is_scalar($this->poolKey)) { |
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78 | $values = []; |
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79 | var_dump($this->poolKey); |
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80 | $this->recursive_scalar_key_build($values, $this->pool); |
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81 | return $values; |
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82 | } |
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83 | |||
84 | // TODO: Recursive Array Key Build. |
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85 | } |
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86 | private function recursive_scalar_key_build(array &$values, &$pool): void |
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87 | { |
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88 | if (isset($pool[$this->poolKey])) { |
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89 | $values[] = &$pool[$this->poolKey]; |
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90 | } |
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91 | for ($x = 0; $x < count($pool); $x++) { |
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92 | if (is_array($pool[array_keys($pool)[$x]])) { |
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93 | $this->recursive_scalar_key_build($values, $pool[array_keys($pool)[$x]]); |
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94 | } |
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95 | } |
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96 | } |
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97 | /** |
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98 | * [get_reference description] |
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99 | * @param string $path [description] |
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100 | * @return [type] [description] |
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101 | */ |
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102 | public function &get_reference(string $path) |
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103 | { |
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104 | $this->run_json_path($path); |
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105 | |||
106 | if ($this->pool == null) return $this->buffer; |
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107 | |||
108 | if ($this->poolKey == null) return $this->pool; |
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109 | |||
110 | if (is_scalar($this->poolKey)) { |
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111 | $values = []; |
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112 | $this->recursive_scalar_key_build($values, $this->pool); |
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113 | return $values; |
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114 | } |
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115 | } |
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116 | /** |
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117 | * [run_path description] |
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118 | * @param string $path [description] |
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119 | */ |
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120 | private function run_json_path(string $path): void |
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121 | { |
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122 | $this->buffer = &$this->data; |
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123 | unset($this->pool); |
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124 | $this->pool = null; |
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125 | $this->poolKey = null; |
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126 | $steps = explode('.', $path); |
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127 | foreach ($steps as $loopIndex => $step) { |
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128 | switch ($step) { |
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129 | case '$': |
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130 | case '': |
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131 | continue 2; |
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132 | default: |
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133 | |||
134 | if ($this->exact_match(self::FIELD_REGEX, $step)) { |
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135 | if ($this->pool == null) { |
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136 | $this->buffer = &$this->buffer[$step]; |
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137 | } else { |
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138 | if ($this->poolKey == null) { |
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139 | $this->poolKey = $step; |
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140 | } else { |
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141 | $this->poolKey .= ".$step"; |
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142 | } |
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143 | } |
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144 | if ($loopIndex == count($steps) - 1) { |
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145 | break; |
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146 | } else { |
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147 | continue 2; |
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148 | } |
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149 | } |
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150 | |||
151 | if ($step == '[*]' || $step == '*') { |
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152 | $this->pool = &$this->buffer; |
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153 | if ($loopIndex == count($steps) - 1) { |
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154 | break; |
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155 | } else { |
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156 | continue 2; |
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157 | } |
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158 | } |
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159 | |||
160 | if (preg_match(self::ARRAY_REGEX, $step)) { |
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161 | if (preg_match(self::SPECIFIC_ARRAY_REGEX, $step)) { |
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162 | list($key, $index) = $this->parse_specific_array_notation($step); |
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163 | if ($this->pool == null) { |
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164 | $this->buffer = &$this->buffer[$key][$index]; |
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165 | } else { |
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166 | $this->poolKey = [$key, $index]; |
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167 | } |
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168 | if ($loopIndex == count($steps) - 1) { |
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169 | break; |
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170 | } else { |
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171 | continue 2; |
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172 | } |
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173 | } |
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174 | if (preg_match(self::ALL_ARRAY_REGEX, $step)) { |
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175 | $this->pool = &$this->buffer[$this->get_key_from_notation($step)]; |
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176 | if ($loopIndex == count($steps) - 1) { |
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177 | break; |
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178 | } else { |
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179 | continue 2; |
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180 | } |
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181 | } |
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182 | } |
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183 | } |
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184 | } |
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185 | } |
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186 | /** |
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187 | * [exact_match description] |
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188 | * @param string $regex [description] |
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189 | * @param [type] $haystack [description] |
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190 | * @return bool [description] |
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191 | */ |
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192 | private function exact_match(string $regex, $haystack): bool |
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193 | { |
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194 | preg_match($regex, $haystack, $matches); |
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195 | return count($matches) > 0 && strlen($matches[0]) == strlen($haystack); |
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196 | } |
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197 | /** |
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198 | * [get_key_from_notation description] |
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199 | * @param string $notation [description] |
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200 | * @return string [description] |
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201 | */ |
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202 | private function get_key_from_notation(string $notation): string |
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203 | { |
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204 | preg_match("/\w+/", $notation, $matches); |
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205 | return $matches[0]; |
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206 | } |
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207 | /** |
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208 | * [parse_specific_array_notation description] |
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209 | * @param string $notation [description] |
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210 | * @return array [description] |
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211 | */ |
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212 | private function parse_specific_array_notation(string $notation): array |
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213 | { |
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214 | preg_match("/\w+/", $notation, $matches); |
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215 | $key = $matches[0]; |
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216 | $notation = preg_replace(self::ARRAY_REGEX, '', $notation); |
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217 | $notation = str_replace(']', '', $notation); |
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218 | return [$key, $notation]; |
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219 | } |
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220 | } |
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221 |