... 3.0.7 - 3.0.18 only, PHP 4 >= 4.0.0) extract -- Import variables into the current symbol table from an array . int extract ( array var_array [, int extract_type [, string prefix]]) . This function is used to import variables from an array into the current symbol table. ... For each key/value pair it will create a variable in the current symbol table, subject to extract_type and prefix parameters. Note: Since version 4.0.5 this function returns the number of variables extracted. ...