回声中的Php功能？ 可能吗？

Question

Hi I have a special problem ... I have three values from database.

Value1 is 1 or 0
Value2 is again 1 or 0
Value3 is remaining time like (24 hours left, 23, ...)

There values are saved in variables:

$value1
$value2
$value3

These values change from DB on every load from webpage. I have these values also inside echo""; The php function is already like:

echo"text text text .................
"Value 1 is:" . $value1 . " and value 2 is:" . $value2 . ""
..................;

I need a function that says different things like

if (value1=0)
echo "Only text"
else
echo "Value 1 is:" . $value1 . " and value 2 is:" . $value2 . ""; 

this to be in another echo function from first example so in my way it looks like this:

*Some function*
echo"if (value1=0)
echo "Only text"
else
echo "Value 1 is:" . $value1 . " and value 2 is:" . $value2 . """; // two echo closing 

But it does not work. Any help will be appreciated.How to solve this? thank you.

Answer 1

Echo is saying to output whatever you type. Saying to output "echo" actually means to display the word "echo". There's no reason to output an output... you already output it!

I think what you want is something more like:

if($value1 == 0){
    echo "Only text";
} else {
    echo "Value 1 is:" . $value1 . " and value 2 is:" . $value2;
}

Answer 2

Your second piece of code looks fine. Having multiple echo statements is not a problem, and using if...else to choose one is perfectly reasonable.

If you have to use just one for some reason, you can use the (...) ? ... : ... (...) ? ... : ... ternary operator.

echo (value1 == 0) ? 'Only text' : "Value 1 is:" . $value1 . " and value 2 is:" . $value2 . """;

Answer 3

Please use value1==0 . Basically = means you assign the value 0 into the variable value1 .

Answer 4

 
 
 
 
  
  
  function chVal($value1, $value2) { if ($value1 == 0) { echo "Only text"; } else { echo "Value 1 is:" . $value1 . " and Value 2 is:" . $value2; } }
 
 
  

Is that what you are looking for?

EDIT : I think I get what you mean.

 
 
 
 
  
  
  function chVal ($val) { if ($val == 0) { return true; } else { return false; } }
 
 
  

if ($value1) {
    echo "Value 1 is:" . $value1 . "\n";
} else {
    echo "Only Text\n";
}

if ($value2) {
    echo "Value 2 is:" . $value2 . "\n";
} else {
    echo "Only Text\n";
}

Answer 5

How about something like:

<?php
$value1=0;
$value2=1;
echo ($value1==0) ? "value 1 is :".$value1." and value 2 is ".$value2 : "only text";
?>

Answer 6

Why not use something like this:

echo "Value 1 : ".func1($value1)." - Value 2 : ".func2($value2)." - Value 3 : ".func3($value3);

then you may have 3 functions or 1 depending on how complex is your logic.

function func1($value){
 if ($value == 0) return " zero ";
 else return " else ";
}

Answer 7

Is this what you're looking for?

I think you're looking to display the PHP code itself: http://se.php.net/manual/en/function.highlight-string.php

<?php
   highlight_string('
      function chkValue($value1,$value2) {
        if($value1 == 0) {
           echo "Only Text<br />";
        } else {
           echo "Value 1 is: ".$value1." and Value 2 is: ".$value2."<br />";
        }
       }
   ');
?>

Answer 8

Probably in this way,

echo 'if (value1=0)
echo "Only text"
else
echo "Value 1 is:"' . $value1 . " and value 2 is:" . $value2 ;

Answer 9

It's very hard to tell what you're trying to achieve, but based on some of your other comments I'm beginning to suspect you want to echo PHP code:

$value = ($value == 0 ? 'Only Text' : "Value 1 is:$value1 and value2 is: $value2");

echo "echo \"$value\";";

update:

Yes thats it! Working but I need different colors for the two texts :-) How to add there?

I'm assuming you're outputting the text to a browser, so something like this will work:

$value = '<span style="color:#'
  . ($value == 0 ? 'f00">Only Text' : "0f0\">Value 1 is: $value1 and value2 is:  $value2")
  . '</span>';

echo "echo \"$value\";";

Answer 10

echo ($value1 == 0)?'Yes':'No';