Filter array or string(removing some words)

Question

My problem is not very complex but I can't find a solution yet. I have a string:

$temp_string = '20938999038,0.5,83888999289,0.5,98883888778,0.9';

// Meaning syskey, price, syskey, price, syskey, price

I want to remove price and show only syskey.

My desirable result:

 '20938999038,83888999289,98883888778'

Thanks in advance.

why are you hurting yourself and you're not using arrays instead? — STT LCU
– STT LCU, Commented May 7, 2013 at 13:45
You need to enclose your string in quotes, otherwise it's not a string. Also have a look at explode and implode, they should point you in the right direction. — gen_Eric
– gen_Eric, Commented May 7, 2013 at 13:45
Thanks for quick answers as long as I got desired results.every solution is welcome. — Wayne Tun Myint
– Wayne Tun Myint, Commented May 7, 2013 at 13:48

Jared Eitnier · Accepted Answer · 2013-05-07 13:46:11Z

3

You can explode it by delimiter

$explode = explode(",", $temp_string);
unset($explode[1], $explode[3], $explode[5]);

Assuming your string always follows this pattern.

answered May 7, 2013 at 13:46

Jared Eitnier

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2 Comments

Wayne Tun Myint Over a year ago

Thanks.What if for longer or shorter inputs?

Jared Eitnier Over a year ago

Well if it follows the same pattern you could continue to add to the unset command. Probably the best solution if it is every other is to do what @Baba recommended and select what values to store based on mod in a loop.

Baba · Accepted Answer · 2013-05-07 13:49:00Z

2

You can try:

$string = "20938999038,0.5,83888999289,0.5,98883888778,0.9";

$new = array();
foreach(explode(",", $string) as $k => $v) {
    $k % 2 or $new[] = $v;
}
echo implode(",", $new); // 20938999038,83888999289,98883888778

answered May 7, 2013 at 13:49

Baba

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