Re: a quick question about array keys
| From: | Richard Quadling | Date: | Tue, 31 Aug 2010 16:39:42 +0000 |
| Subject: | Re: a quick question about array keys | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-307778@lists.php.net to get a copy of this message | ||
On 31 August 2010 17:06, Tontonq Tontonq <rootdot@gmail.com> wrote:
> Array
> (
> [300] => 300
> [301] => 301
> [302] => 302
> [303] => 303
> [304] => 304
> [305] => 305
> [306] => 306
> [307] => 307
> [308] => 308
> [309] => 309
> [310] => 310
> [311] => 311
> [312] => 312
> [313] => 313
> [314] => 314
> [165] => 165
> [166] => 166
> [167] => 167
> [168] => 168
> [169] => 169
> [170] => 170
> [171] => 171
> [172] => 172
> [173] => 173
> [201] => 201
> [202] => 202
> [203] => 203
> [204] => 204
> [205] => 205
> [206] => 206
> [207] => 207
> [208] => 208
> [209] => 209
> [210] => 210
> [211] => 211
> [212] => 212
> [213] => 213
> [214] => 214
> [215] => 215
> [315] => 315
$newData = array();
$firstValue = null;
$lastValue = null;
foreach($data as $value)
{
// New first value.
if (is_null($firstValue))
{
$firstValue = $value;
$lastValue = null;
}
// New last value and is the same or 1 more.
if (is_null($lastValue))
{
$lastValue = $value;
}
// Is the value this or the next value from $lastValue
else if($value == $lastValue || $value == 1 + $lastValue)
{
$lastValue = $value;
}
// We have a break;
else
{
$newData[] = "$firstValue-$lastValue";
$firstValue = $lastValue = null;
}
}
--
Richard Quadling
Twitter : EE : Zend
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY