是否多次打开和关闭php标签会增加页面加载量? [英] Does opening and closing php tags multiple times increases page load?
问题描述
可能重复:
打开/关闭标签&性能?
Possible Duplicate:
Opening/closing tags & performance?
这是一个新手问题，但是我在网上找不到明确的答案，所以请不要笑:)
This is a newbie question, but I could not find a clear answer on the net, so please don't laugh :)
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打开和关闭php标签(
<? php code ?>)多次是否会增加页面加载时间?
Does opening and closing php tags (
<? php code ?>) multiple times increases page load time?
如何多次使用include templatepath?
How about using include templatepath multiple times?
谢谢
推荐答案
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从理论上讲是的，但是差别很小，几乎在所有情况下都没有关系.
Theoretically yes, but the difference is so miniscule that in almost all cases it wouldn't matter.
不确定您的意思.如果可能多次包含文件，请使用include_once或require_once.这样可以避免多次加载，并防止出现诸如无法重新声明类" 之类的错误.同样，它比include和require昂贵，但更稳定.
Not sure about what you mean. If there is a possibility of a file being included multiple times, use include_once or require_once. This will prevent multiple loads and prevents errors like 'Cannot redeclare class'. Again this is more expensive than include and require, but more stable.
请注意，您的问题与代码无关，并且我确信这些问题已在SO中被多次询问和回答，因此，下次请尝试更好地搜索/询问:)
祝一切顺利！
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