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run code in 200+ php & hhvm versions
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<?php function float_strval($fltValue) { $strValue = (string)$fltValue; if (preg_match("/E[\+\-]\d+$/", $strValue)) { $strValue = number_format($fltValue, 16, '.', ''); } $oldStrValue = number_format($fltValue, 16, '.', ''); return ['in'=>$fltValue, 'out'=>$strValue, 'old'=>$oldStrValue]; } print_r(float_strval(0.00000021)); print_r(float_strval(1209381092380198230.123)); print_r(float_strval(90.05));
based on fsl4I
Output for 5.4.0 - 7.3.0rc4
Array ( [in] => 2.1E-7 [out] => 0.0000002100000000 [old] => 0.0000002100000000 ) Array ( [in] => 1.2093810923802E+18 [out] => 1209381092380198144.0000000000000000 [old] => 1209381092380198144.0000000000000000 ) Array ( [in] => 90.05 [out] => 90.05 [old] => 90.0499999999999972 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ddBh0 on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/ddBh0 on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ddBh0 on line 9
Process exited with code 255.