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<?php
namespace WPForms\Pro\Helpers;
/**
* CSV related helper methods.
*
* @since 1.7.7
*/
class CSV {
/**
* Formulas start characters.
*
* @since 1.7.7
*
* @var array
*/
const FORMULAS_START_CHARS = [ '=', '-', '+', '@', "\t", "\r" ];
/**
* Escape string for CSV.
*
* @since 1.7.7
*
* @param mixed $value Value to escape.
*
* @return string
*/
public function escape_value( $value ) {
// Prevent formulas in spreadsheet applications.
if ( in_array( substr( (string) $value, 0, 1 ), self::FORMULAS_START_CHARS, true ) ) {
$value = "'" . $value;
}
return html_entity_decode( $value, ENT_QUOTES );
}
}