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<?php function float_strval($fltValue) { $strValue = (string)$fltValue; if (preg_match("/E([\+\-])(\d+)$/", $strValue, $captures)) { if ($captures[1] === '-') { $strValue = number_format($fltValue, $captures[2], '.', ''); } else { $strValue = number_format($fltValue, 0, '.', ''); } } return [$fltValue, $strValue]; } var_dump(float_strval(0.00000021)); var_dump(float_strval(1209381092380198230.123));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> float(2.1E-7) [1]=> string(9) "0.0000002" } array(2) { [0]=> float(1.2093810923801981E+18) [1]=> string(19) "1209381092380198144" }

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