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run code in 150+ php & hhvm versions
Bugs & Features
<?php function convertFloat($float) { $float = (string)$float; $expPos = strpos($float, 'E'); if ($expPos === false) { return $float; } $beforeDot = '0'; // Well, fuck you my English. $afterDot = '0'; // ^^ $numberWithoutPrecision = substr($float, 0, $expPos); $exp = (int)substr($float, $expPos + 1, strlen($float)); if ($exp === 0) { return '1'; } $dotPos = strpos($numberWithoutPrecision, '.'); if ($dotPos === false) { $beforeDot = $numberWithoutPrecision; } else { $beforeDot = substr($numberWithoutPrecision, 0, $dotPos); $afterDot = substr($numberWithoutPrecision, $dotPos + 1, strlen($numberWithoutPrecision)); } if ($exp < 0) { } else { $len = strlen($beforeDot); if ($len <= $exp) { return $beforeDot.($afterDot !== '0' ? $afterDot : '').str_repeat('0', $exp - $len).'i'; } else { return $beforeDot.substr($afterDot, 0, $exp).substr($afterDot, $exp, strlen($afterDot)); } } var_dump($beforeDot, $afterDot); } var_dump(convertFloat(1.004e+2));
Output for 4.3.0 - 7.1.0
string(5) "100.4"