Fix test fails: ext/standard/tests/general_functions/bug27678.phpt

[reeze]

Hi,
After commit 3e62aae, number_format() set return string by length,
but _php_math_number_format_ex_len() didn't set the string length
on nan or inf.
3e62aae#L1R1258
when function _php_math_number_format_ex_len() return without set the length.
the return value's string length is wild bits. This may cause segfault when destruct the return value.

@cataphract will you take a look?

Thanks :)

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x000000015b278d8a
0x00000001004eef51 in _zval_dtor_func (zvalue=0x100cd2ea8, __zend_filename=0x1009ad298 "Zend//zend_execute.h", __zend_lineno=87)
    at zend_variables.c:35
35              CHECK_ZVAL_STRING_REL(zvalue);
(gdb) bt
#0  0x00000001004eef51 in _zval_dtor_func (zvalue=0x100cd2ea8, __zend_filename=0x1009ad298 "Zend//zend_execute.h", 
    __zend_lineno=87) at zend_variables.c:35

[php-pulls]

Comment on behalf of cataphract at php.net:

merged. Thanks.

[php-pulls]

Comment on behalf of cataphract at php.net:

.