Bug #74167 [Com]: intval() considers string input as integer if string contains e(e notation)

Edit report at https://bugs.php.net/bug.php?id=74167&edit=1 ID: 74167 Comment by: stephin at stephin dot in Reported by: stephin at stephin dot in Summary: intval() considers string input as integer if string contains e(e notation) Status: Not a bug Type: Bug Package: Strings related PHP Version: 7.1.2 Block user comment: N Private report: N New Comment: php 7.1.2 php -r "echo intval('354e3318D2174C4196I7371p2214T3183F6594X2108');" output: 0 why should it be 0? other previous version series php -r "echo intval('354e3318D2174C4196I7371p2214T3183F6594X2108');" output: 354 Previous Comments: ------------------------------------------------------------------------ [2017-02-25 18:41:03] stephin at stephin dot in how can we call this string(354e3318D2174C4196I7371p2214T3183F6594X2108) as numerical string? ------------------------------------------------------------------------ [2017-02-25 18:30:30] requinix@php.net As noted, this was a deliberate change, and it was part of an improvement to numeric strings as a whole. https://wiki.php.net/rfc/invalid_strings_in_arithmetic ------------------------------------------------------------------------ [2017-02-25 18:22:32] spam2 at rhsoft dot net this is for most cases a bugfix where before PHP7.1 when something returned scientific notation because of 0.0000000000001 you got weird results and lost data i have some workarounds in several scripts to prevent that which are ugly if(strpos($out, 'E') || strpos($out, 'e')) { $out = rtrim(number_format((float)$out, 20), '0'); } http://php.net/manual/de/migration71.incompatible.php Numerical string conversions now respect scientific notation Integer operations and conversions on numerical strings now respect scientific notation. This also includes the (int) cast operation, and the following functions: intval() (where the base is 10), settype(), decbin(), decoct(), and dechex() ------------------------------------------------------------------------ [2017-02-25 18:10:04] stephin at stephin dot in Description: ------------ php -r "echo intval('1e10');" expected output: 1 actual output: 10000000000 i have tested this in some of other previous version series and found only php 7.1.x have this bug. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74167&edit=1