You need a modicum of programming savvy to create functions, but nothing onerous.
创建函数需要一定的编程经验，但是并不不是很麻烦。
This makes it difficult to create functions in scripts that are designed to be loaded repeatedly, such as custom syntax-highlighting scripts.
这使得很难在需要反复加载的脚本中创建函数，比如自定义的语法突出显示脚本。
The concept of lambda functions is the basis for closures and provides a much-improved way to create functions on the fly vs. the create_function function already in PHP.
lambda函数的概念是闭包的基础，并且提供了一种比PHP中已有的create_function函数改进了很多的动态创建函数的方法。
The concept of lambda functions is the basis for closures and provides a much-improved way to create functions on the fly vs. the create_function function already in PHP.
lambda函数的概念是闭包的基础，并且提供了一种比PHP中已有的create_function函数改进了很多的动态创建函数的方法。
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