Array key position

PHP
1

hi all


$days = array("monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday");
foreach($days as $key => $value){
echo $key ." ". $value."<br>";
}

The above outputs


0 monday
1 tuesday
2 wednesday
3 thursday
4 friday
5 saturday
6 sunday



$date = date("l");
echo $date;

The outputs day as “tuesday” and its correct.

now if “tuesday” is found in array values, then i want to output the key position.


if($date == $value){
echo  "<br> today's key position is ".$key;
}

this above code outputs as 6. It should be 1.

vineet

2

[COLOR=#000000]echo $date[COLOR=#007700];

[/COLOR][/COLOR]outputs “Tuesday”

3

hi webdev

if i change my arrays values to “Tuesday” with a capital T, then also it doesnt works


$days = array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday");
foreach($days as $key => $value){
echo $key ." ". $value."<br>";
}

vineet

4

Try array_search() which will give key for what is being searched for or false if what is being searched for is not found.

5

hi spacephoenix

i did get the value with array_search()
but i cant get the value displayed with my “if statement”


$days = array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday");
foreach($days as $key => $value){
echo $key ." ". $value."<br>";
} 
$date = date("l");
echo $date;
echo "<br><br>";

$keyv = array_search($date, $days);
echo  "<br> today's key value is ".$keyv. "<br>";

if($date == $value){ 
 echo  "<br> today's key position is ".$keyv; 
}

what am i doing wrong

vineet

6

The if statement is comparing $date which has a value of Tuesday with $value which has a value of Sunday. When the value of $date is Sunday then the if statement will evaluate to true. You can check this by running the script then changing your system time to a Sunday and running the script again (don’t forget to set your system time back again afterwards).

7

hi Spacephoenix

thats where i m stuck. why am i geting the value as 6 or sunday.

Do i need to split the array values and then match with the current day value.

vineet

8 
<?php
$days = array("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday");
$date = date("l");

foreach($days as $key => $value){
    if($value == $date){
        echo 'key = '.$key;   //outputs 1
    }
}

?>
9

Thanks webdev

it works perfect

vineet

10

Uhm, any specific reason not to use date(‘w’) or date(‘N’) here?

11 
foreach($days as $key => $value){
echo $key ." ". $value."<br>";
}

Think about it. Each time the loop goes around, it puts a new value into $value. What would be sitting in $value when it’s done?

Hint: What would the value be if I made your array:

array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday','Snurzleberryday');

?

12

hi michael

i took date() just as an example.

i m in learning stage and was stuck with using “if” statement with “foreach” loop in arrays.

webdev gave me a good solution.

vineet