thinkphp template tags if and eq differences and comparison example analysis _php tutorials

thinkphp template tags if and eq differences and comparison example analysis

The examples in this article describe the differences and comparisons between the thinkphp template label if and EQ. Share to everyone for your reference. The specific analysis is as follows:

In the TP template language. Both if and EQ can be used for comparison of variables. Summarize the following points:

1. Comparison of two variables:

?

1

2

　　

If the former is a judgment failure, use the latter's (or ) ok. Note: Name there is no need to add the $ variable symbol, and value there is to add the $ variable symbol.

2. There is also a value of NULL (NULL) When:

?

1

2 just a test

　　 Just a test

If the former is a judgment failure, the latter (or ) can be used to recognize null as ""

3. When the multi-dimensional array and subscript is 0:

?

1

2 just a test

　　 Just a test

The former with if is simply not compiled, with the back of the EQ can be

I hope this article is helpful to everyone based on thinkphp PHP program design.

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