This statement is also called as conditional statement. Basic if statementss are useful to check for conditions, such as, whether a user is logged in.
It returns a warning while encountering any void value in its conditions. Using this ternary operator is not only an efficient solution but the best case with a time-saving approach. This conditional statement takes its execution from left to right. In this tutorial we will see one such decision making statement called as Ifelse statement. This is treated as an alternative method of implementing if-else or even nested if-else statements. These statements control the decision making, repetition, interruption etc. Read more about conditional statements in our PHP if else Tutorial.
It also applies to any variation of the if conditional, such as if.elseif and if.else.
PHP IF ELSE CODE
The code you can see in the example is meant to output the text Good day. Let's see if else PHP statements in action to get a better idea. If it is not, the code next to the else statement is executed as an alternative. These statements are called as control statements. The endif keyword is used to mark the end of an if conditional which was started with the if (.): syntax. if else PHP statements execute certain code if the condition specified next to the if part proves true. The elseif statement can be used with the if-else statements. Each language has statements that control its execution.
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In above example value $a is 10 and $b is 17, so if condition is false so execute else code and print “a is less than b” message in output.Start Your Free Software Development Course The if condition is true then print “welcome to system” message and if false then print “Error, Please try again” message. Here, in if condition we check the $uname and $upass values is right or wrong. In above php example we have two variables with values $uname and $upass. if.elseif.else statement - executes different codes for more than two conditions. if.else statement - executes some code if a condition is true and another code if that condition is false. The above if statement is used to implement the conditional statement for multiple if statements. The syntactic meaning is slightly different (if you're familiar with C, this is the same behavior) but the bottom line is that both would result in exactly the same behavior. In PHP, you can also write 'else if' (in two words) and the behavior would be identical to the one of 'elseif' (in a single word). Here we can write two answer for one condition if the condition is true or false. In PHP we have the following conditional statements: if statement - executes some code if one condition is true. The first elseif expression (if any) that evaluates to true would be executed. In if-else statement execute some code the if condition is true or execute another code the if condition is false. Here, the if condition is true so code will be executed and result will be “a is grater than b”. In above php example we have two variables $a and $b with values 10 and 7 respectively. If we do something we will get something if not if we will get nothing. It’s a one-way branching in which the statements will only execute if the given expression is true. Lets some php example to understood more about simple if statement. The working of this if and else is just a basic real-life conditional-based stuff. PHP if statement, as the name suggests, is used to make a decision and execute a block of code if only the condition checked is matched. If the condition is not true there will be nothing to execution. If-else statement is slightly different from if statement. If else are the basic conditional statements that are normally used to perform different types of actions based on some of the different conditions. In above if condition we have some code for execution but it will only execute the condition is true. PHP if-else statement is executed whether condition is true or false. There is not code for execution the if condition is not true. Simple if statement is used when we have only one condition and the code will be executed only and only if the condition is true. Conditional statement in php used to take decision on based the conditions is true or false.
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