91 lines
2.5 KiB
PHP
91 lines
2.5 KiB
PHP
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<?php
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/* FlatArray | https://gitlab.com/byjoby/flatarray | MIT License */
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namespace FlatArray;
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class SelfReferencingFlatArray extends FlatArray
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{
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public function get(string $name=null, bool $raw = false, $unescape = true)
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{
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$out = parent::get($name);
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if ($raw) {
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return $out;
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}
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$out = $this->filter($out);
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if ($unescape) {
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$out = $this->unescape($out);
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}
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return $out;
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}
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protected function unescape($value)
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{
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if ($value === null) {
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return null;
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}
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//search/replace on string values
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if (is_string($value)) {
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//unescape references
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$value = preg_replace(
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'/\$\\\?\{([^\}\\\]+)\\\?\}/',
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'\${$1}',
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$value
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);
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//return
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return $value;
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}
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//map this function onto array values
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if (is_array($value)) {
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return array_map(
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function ($i) {
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return $this->filter($i);
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},
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$value
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);
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}
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//fall back to just returning value, it's some other datatype
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return $value;
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}
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/**
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* Recursively replace ${var/name} type strings in string values with
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*/
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protected function filter($value)
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{
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if ($value === null) {
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return null;
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}
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//search/replace on string values
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if (is_string($value)) {
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//search for valid replacements
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$value = preg_replace_callback(
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//search for things like ${var/name}, escape with \ before last brace
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'/\$\{([^\}]*[^\.\\\])\}/',
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//replace match with value from $this if it exists
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function ($matches) {
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if (null !== $value = $this->get($matches[1], false, false)) {
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if (!is_array($value)) {
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return $value;
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}
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}
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return $matches[0];
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},
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//applied to $value
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$value
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);
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//return
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return $value;
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}
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//map this function onto array values
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if (is_array($value)) {
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return array_map(
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function ($i) {
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return $this->filter($i);
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},
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$value
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);
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}
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//fall back to just returning value, it's some other datatype
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return $value;
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}
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}
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