How to use a switch case or in PHP

Question

Is there a way of using an  OR  operator or equivalent in a PHP switch   For example  something like this   switch   value         case 1    2          echo  the value is either 1 or 2           break

User · Answer

Note that you can also use a closure to assign the result of a switch (using early returns) to a variable:

$otherVar = (static function($value) {
    switch ($value) {
        case 0:
            return 4;
        case 1:
            return 6;
        case 2:
        case 3:
            return 5;
        default:
            return null;
    }
})($i);

Of course this way to do is obsolete as it is exactly the purpose of the new PHP 8 match function as indicated in _dom93 answer.

User · Answer

Try with these following examples in this article   http   phpswitch com   Possible Switch Cases     i   A simple switch statement  The switch statement is wondrous and magic  It s a piece of the language that allows you to select between different options for a value  and run different pieces of code depending on which value is set   Each possible option is given by a case in the switch statement   Example    switch  bar        case 4          echo  This is not the number you re looking for  n            foo   92       ii   Delimiting code blocks  The major caveat of switch is that each case will run on into the next one  unless you stop it with break  If the simple case above is extended to cover case 5   Example    case 4      echo  This is not the number you re looking for  n        foo   92      break   case 5      echo  A copy of Ringworld is on its way to you  n        foo   34      break     iii   Using fallthrough for multiple cases  Because switch will keep running code until it finds a break  it s easy enough to take the concept of fallthrough and run the same code for more than one case   Example    case 2   case 3  case 4      echo  This is not the number you re looking for  n        foo   92      break   case 5      echo  A copy of Ringworld is on its way to you  n        foo   34      break     iv   Advanced switching  Condition cases  PHP s switch doesn t just allow you to switch on the value of a particular variable  you can use any expression as one of the cases  as long as it gives a value for the case to use  As an example  here s a simple validator written using switch   Example    switch true        case  strlen  foo   gt  30            error    The value provided is too long         valid   false      break       case   preg match     A-Z0-9    i    foo             error    The value must be alphanumeric         valid   false      break       default       valid   true      break      i think this may help you to resolve your problem

User · Answer

Use this code  switch  a        case 1      case 2                                                          break     The block is called for both 1 and 2

User · Answer

I suggest you to go through switch  manual   switch   your variable        case 1      case 2          echo  quot the value is either 1 or 2  quot       break     Explanation Like for the value you want to execute a single statement for  you can put it without a break as as until or unless break is found  It will go on executing the code and if a break found  it will come out of the switch case

User · Answer

switch   value        case 1     case 2        echo  the value is either 1 or 2      break

User · Answer

switch   value        case 1      case 2          echo  the value is either 1 or 2        break      This is called  falling through  the case block  The term exists in most languages implementing a switch statement

User · Answer

Try  switch  value        case 1      case 2          echo  the value is either 1 or 2           break

User · Answer

switch   value        case 1      case 2          echo  the value is either 1 or 2        break      This is called  falling through  the case block  The term exists in most languages implementing a switch statement

User · Answer

I suggest you to go through switch  manual   switch   your variable        case 1      case 2          echo  quot the value is either 1 or 2  quot       break     Explanation Like for the value you want to execute a single statement for  you can put it without a break as as until or unless break is found  It will go on executing the code and if a break found  it will come out of the switch case

User · Answer

Try  switch  value        case 1      case 2          echo  the value is either 1 or 2           break

User · Answer

Try  switch  value        case 1      case 2          echo  the value is either 1 or 2           break

User · Answer

I won t repost the other answers because they re all correct  but I ll just add that you can t use switch for more  complicated  statements  eg  to test if a value is  greater than 3    between 4 and 6   etc  If you need to do something like that  stick to using if statements  or if there s a particularly strong need for switch then it s possible to use it back to front   switch  true        case   value  gt  3               value is greater than 3     break      case   value  gt   4  amp  amp   value  lt   6               value is between 4 and 6     break      but as I said  I d personally use an if statement there

User · Answer

Match expression  PHP 8  PHP 8 RFC introduced a new match expression that is similar to switch but with the shorter syntax   doesn t require break statements combine conditions using a comma returns a value  Example  match   value      0   gt   0     1  2   gt   quot 1 or 2 quot     default   gt   quot 3 quot

User · Answer

The best way might be if else with requesting  Also  this can be easier and clear to use   Example    lt  php   go     REQUEST  go      gt   lt  php if   go     general information     gt   lt div gt  echo  hello      gt    Instead of using the functions that won t work well with PHP  especially when you have PHP in HTML

User · Answer

Match expression  PHP 8  PHP 8 RFC introduced a new match expression that is similar to switch but with the shorter syntax   doesn t require break statements combine conditions using a comma returns a value  Example  match   value      0   gt   0     1  2   gt   quot 1 or 2 quot     default   gt   quot 3 quot

User · Answer

If you must use    with switch then you can try      v   1  switch  true        case   v    1     v    2           echo  the value is either 1 or 2           break      If not your preferred solution would have been   switch  v        case 1      case 2          echo  the value is either 1 or 2           break      The issue is that both method is not efficient when dealing with large cases     imagine 1 to 100 this would work perfectly    r1   range 1  100    r2   range 100  200    v   76  switch  true        case in array  v   r1            echo  the value is in range 1 to 100           break      case in array  v   r2            echo  the value is in range 100 to 200           break

User · Answer

I won t repost the other answers because they re all correct  but I ll just add that you can t use switch for more  complicated  statements  eg  to test if a value is  greater than 3    between 4 and 6   etc  If you need to do something like that  stick to using if statements  or if there s a particularly strong need for switch then it s possible to use it back to front   switch  true        case   value  gt  3               value is greater than 3     break      case   value  gt   4  amp  amp   value  lt   6               value is between 4 and 6     break      but as I said  I d personally use an if statement there

User · Answer

switch   value        case 1      case 2          echo  the value is either 1 or 2        break      This is called  falling through  the case block  The term exists in most languages implementing a switch statement

User · Answer

Try with these following examples in this article   http   phpswitch com   Possible Switch Cases     i   A simple switch statement  The switch statement is wondrous and magic  It s a piece of the language that allows you to select between different options for a value  and run different pieces of code depending on which value is set   Each possible option is given by a case in the switch statement   Example    switch  bar        case 4          echo  This is not the number you re looking for  n            foo   92       ii   Delimiting code blocks  The major caveat of switch is that each case will run on into the next one  unless you stop it with break  If the simple case above is extended to cover case 5   Example    case 4      echo  This is not the number you re looking for  n        foo   92      break   case 5      echo  A copy of Ringworld is on its way to you  n        foo   34      break     iii   Using fallthrough for multiple cases  Because switch will keep running code until it finds a break  it s easy enough to take the concept of fallthrough and run the same code for more than one case   Example    case 2   case 3  case 4      echo  This is not the number you re looking for  n        foo   92      break   case 5      echo  A copy of Ringworld is on its way to you  n        foo   34      break     iv   Advanced switching  Condition cases  PHP s switch doesn t just allow you to switch on the value of a particular variable  you can use any expression as one of the cases  as long as it gives a value for the case to use  As an example  here s a simple validator written using switch   Example    switch true        case  strlen  foo   gt  30            error    The value provided is too long         valid   false      break       case   preg match     A-Z0-9    i    foo             error    The value must be alphanumeric         valid   false      break       default       valid   true      break      i think this may help you to resolve your problem

User · Answer

Use this code  switch  a        case 1      case 2                                                          break     The block is called for both 1 and 2

User · Answer

I won t repost the other answers because they re all correct  but I ll just add that you can t use switch for more  complicated  statements  eg  to test if a value is  greater than 3    between 4 and 6   etc  If you need to do something like that  stick to using if statements  or if there s a particularly strong need for switch then it s possible to use it back to front   switch  true        case   value  gt  3               value is greater than 3     break      case   value  gt   4  amp  amp   value  lt   6               value is between 4 and 6     break      but as I said  I d personally use an if statement there

User · Answer

The best way might be if else with requesting  Also  this can be easier and clear to use   Example    lt  php   go     REQUEST  go      gt   lt  php if   go     general information     gt   lt div gt  echo  hello      gt    Instead of using the functions that won t work well with PHP  especially when you have PHP in HTML

User · Answer

switch   value        case 1     case 2        echo  the value is either 1 or 2      break

User · Answer

switch   value        case 1      case 2          echo  the value is either 1 or 2        break      This is called  falling through  the case block  The term exists in most languages implementing a switch statement

User · Answer

http   php net manual en control-structures switch php Example       today   date  D         switch  today            case  Mon            case  Tue                echo  Today is Tuesday or Monday  Buy some food                 break           case  Wed                echo  Today is Wednesday  Visit a doctor                 break           case  Thu                echo  Today is Thursday  Repair your car                 break           default               echo  No information available for that day                 break

User · Answer

Note that you can also use a closure to assign the result of a switch (using early returns) to a variable:

$otherVar = (static function($value) {
    switch ($value) {
        case 0:
            return 4;
        case 1:
            return 6;
        case 2:
        case 3:
            return 5;
        default:
            return null;
    }
})($i);

Of course this way to do is obsolete as it is exactly the purpose of the new PHP 8 match function as indicated in _dom93 answer.

User · Answer

Try  switch  value        case 1      case 2          echo  the value is either 1 or 2           break

User · Answer

If you must use    with switch then you can try      v   1  switch  true        case   v    1     v    2           echo  the value is either 1 or 2           break      If not your preferred solution would have been   switch  v        case 1      case 2          echo  the value is either 1 or 2           break      The issue is that both method is not efficient when dealing with large cases     imagine 1 to 100 this would work perfectly    r1   range 1  100    r2   range 100  200    v   76  switch  true        case in array  v   r1            echo  the value is in range 1 to 100           break      case in array  v   r2            echo  the value is in range 100 to 200           break

User · Answer

I won t repost the other answers because they re all correct  but I ll just add that you can t use switch for more  complicated  statements  eg  to test if a value is  greater than 3    between 4 and 6   etc  If you need to do something like that  stick to using if statements  or if there s a particularly strong need for switch then it s possible to use it back to front   switch  true        case   value  gt  3               value is greater than 3     break      case   value  gt   4  amp  amp   value  lt   6               value is between 4 and 6     break      but as I said  I d personally use an if statement there

User · Answer

http   php net manual en control-structures switch php Example       today   date  D         switch  today            case  Mon            case  Tue                echo  Today is Tuesday or Monday  Buy some food                 break           case  Wed                echo  Today is Wednesday  Visit a doctor                 break           case  Thu                echo  Today is Thursday  Repair your car                 break           default               echo  No information available for that day                 break

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