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1.ecs 中的比较运算符
switch (strtolower($token))
{
case 'eq':
$token = '==';
break;

case 'ne':
case 'neq':
$token = '!=';
break;

case 'lt':
$token = '<';
break;

case 'le':
case 'lte':
$token = '<=';
break;

case 'gt':
$token = '>';
break;

case 'ge':
case 'gte':
$token = '>=';
break;

case 'and':
$token = '&&';
break;

case 'or':
$token = '||';
break;

case 'not':
$token = '!';
break;

case 'mod':
$token = '%';
break;

default:
if ($token[0] == '$')
{
$token = $this->get_val(substr($token, 1));
}
break;
}
原文地址:https://www.cnblogs.com/da-guang/p/4950478.html