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Php if else inside switch statement8/16/2023 ![]() ![]() If statements are more flexible and you can more easily capture ranges of values (especially large ranges) as well as do more complex comparisons whereas switch statements line up to exactly one value. ![]() This article in particular,, is interesting as the author compares internal php code of if vs switch and they are nearly identical.Īnyways, I would say that any performance gain will be insignificant one way or the other, so it's more of a user preference. This probably is not true if you compile php (something I've never done, but apparently it's possible). I also found several references all suggesting that if / else statements in php may actually be faster than switch statements (weird). List, PHP will go on executing the statements of the following case. You don't write a break statement at the end of a case's statement Of the switch block, or the first time it sees a break statement. ![]() PHP continues to execute the statements until the end Matches the value of the switch expression does PHP begin to execute Only when a case statement is found with a value that The switch statement executes line by line It is important to understand how the switch statement is executed in Regarding php being interpreted, the PHP docs says: Net article about switch optimization: If vs. However, from what I've read, it appears php makes no such optimization (I'm assuming because it's interpreted and runs line by line). Even switching on a string can be optimized as the string can be hashed. They can execute certain instructions if a condition is true, and other instructions if it is false. All conditional statements deal with Boolean values (true and false). Interesting question because in a compiled languaged (or JIT'ed language even) there is a nice performance gain when using switch statements because the compiler can build jump tables and will run in constant time. Conditional Statements if, else, switch Conditional statements enable you to program a script to make decisions based on one ore more conditions. ![]()
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