Why is this a compile error:
<?php
class Bean
{
public $text = array("123", "456");
public $more = array("000 {$this->text[0]} 000", "--- {$this->text[1]} ---");
}
?>
The compiler says PHP Parse error: syntax error, unexpected '"'
How can I use my text array within my other arrays?
As mentioned earlier you can't do that (directly) with current versions of php. Even the new features of php 5.6 won't allow that, see http://php.net/manual/en/migration56.new-features.php
But let's assume you have a valid intrest in this, like e.g. keeping/grouping something in the more declarative section of the class than hiding it somewhere in a pile of code, you could do something ( maybe a "bit" more sophisticated ;-) ) like
<?php
class Bean
{
public $text = array("123", "456");
public $more = array('000 %1$s 000', '--- %2$s ---');
public function Bean() {
foreach($this->more as $k=>&$v) {
$v = vsprintf($v, $this->text);
}
}
}
$b = new Bean;
print_r($b->more);
vsprintf work with double quotes? @penu: search for vsprintf or sprintf in the documentation of PHP.
What you do in that line:
public $more = array("000 {$this->text[0]} 000", "--- {$this->text[1]} ---");
is not working in PHP.
http://php.net/manual/en/language.oop5.properties.php
here you can see valid and invalid values for properties in that example. So if you use double quotes PHP try to resolve the string.
http://php.net/manual/en/language.types.string.php#language.types.string.syntax.double
So you have to replace your " with ' then it should work
public $more = array('000 {$this->text[0]} 000)', '(--- {$this->text[1]} ---)');
what you can do is to set a placeholder in that variable and replace them before you need them with vsprintf for example.
You can only set scalar values., that's not true. Array is not scalar but still you can use it.
You could do this:
class Bean
{
public $text = array("123", "456");
public function fillMore () {
$more = array();
$more[0] = "000 ".$this->text[0]." 000";
$more[1] = "000 ".$this->text[1]." 000";
var_dump($more);
}
}
$bean = new Bean();
$bean->fillMore();
Alternatively you could try and fill the $more in your constructor too.
This will get you your $more when you initialize the class.
public $more = array("000 {" . $this->text[0] . "} 000", "--- {" . $this->text[1] . "} ---");