How to solve a simple small question

A simple small question fills in blank questions, and outputs helloworld. I have never done it before. There are many ways to narrow down the question. At present, I think there are 14 short answers. I wonder if you can make it simpler. if (_____) {& nbsp; echo & quot; hello & quot ;;} else {& nbsp; e a simple small question
Fill in the blank question and output hello world.
I have never done it before, and there are many ways to narrow down.
I have 14 short answers. I wonder if I can make it simpler.
You and Me


If (_____){
Echo "hello ";
} Else {
Echo "world .";
}

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PHP code

If (! Print ('Hello') {echo "hello";} else {echo "world .";}
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PHP code
   
   
If (true) {echo "hello";} else {echo "world ";}
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     Discussion
     

     
#1 haha, it is estimated that there are no other good guys Farah
     

     
If (die ('Hello world .'))
     
If (1) echo 'hello'; if (0)
     

    
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     Discussion
     

     
PHP code
     
If (! Print ('Hello ')){
     
Echo "hello ";
     
} Else {
     
Echo "world .";
     
}
     
Is that what the landlord thinks ~
     

    
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Idle,

I have a suggestion that the moderator should collect the php framework of every php enthusiast and post it to elaborate on the specific usage features.

Efficiency development method .. And so on.
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Oh, it's similar to SQL injection. I'm taught. it's true.
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Gao Cai, the landlord, I also thought ~~
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     Discussion
     

     
1) echo 'hello'; if (0
     

     
Final code
     
If (1) echo 'hello'; if (0)
     
{
     
Echo "hello ";
     
} Else {
     
Echo "world .";
     
}
     

     

     
Hello world.
     

     
Reference:
     

     
Reference:
     

     
#1 haha, it is estimated that there are no other good guys Farah
     

     
If (die ('El ......