28 lines
1.6 KiB
PHP
28 lines
1.6 KiB
PHP
<?php
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/**
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* Generates a JavaScript script tag containing commands to store PHP array key-value pairs in local storage.
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* This function is designed to translate PHP associative array data into JavaScript local storage items.
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* It ensures that the array is associative and single-level before proceeding with the JavaScript code generation.
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* This is used when dumping session data into local storage for use by the client script.
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*
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* @param array $phpArray The associative array whose data will be converted into JavaScript local storage setItem calls.
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* @return string Returns a script tag with JavaScript code. If the input is not a valid single-level associative array,
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* it returns a script with an error logged to the console.
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*/
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function generateScriptData(array $phpArray):string {
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// Check if the array is associative and single-level
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if (count($phpArray) > 0 && count(array_filter(array_keys($phpArray), 'is_string')) === count($phpArray)) {
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// Generate JavaScript code to save each array element to local storage
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$out = "<script>";
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foreach ($phpArray as $key => $value) {
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$escapedKey = addslashes(strval($key)); // Escape special characters in the key
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$escapedValue = addslashes(strval($value)); // Escape special characters in the value
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$out .= "localStorage.setItem('$escapedKey', '$escapedValue');";
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}
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$out.= "</script>";
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} else {
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$out = "<script>console.error('Invalid PHP array. Must be single-level and associative.');</script>";
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}
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return $out;
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} |