处理的方法是:
$sign = 'mDT5tOFRPIacPPKly CfWQzdOfuY1ezZw9vZrugaAGDS CoHawqLoLphunQR2pPA9R9km7hbU/2iAtZtftUIIeLE6bH0CtceCaan/akYgQuCJgHOZLRtEjiVxjV KTUkGDus0oQLcq1OSOtBn1UUTj4FC2ozZNNuMhsyObE92TY=';
$vv = urlencode($sign);
$sign = rawurldecode($vv);
输出的是:
mDT5tOFRPIacPPKly+CfWQzdOfuY1ezZw9vZrugaAGDS+CoHawqLoLphunQR2pPA9R9km7hbU/2iAtZtftUIIeLE6bH0CtceCaan/akYgQuCJgHOZLRtEjiVxjV+KTUkGDus0oQLcq1OSOtBn1UUTj4FC2ozZNNuMhsyObE92TY=
可以看到空格变成+号了