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language:	PHP (php 5.2.11)
date:	104 days 2 hours ago
link:
visibility:	public private user's deleted

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$string = "test test test test";
echo preg_replace('[^\s]', '', $string);

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# 4 # 3 # 2 # 1

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# 4: hide show clone input 102 days 11 hours ago Success

result: Success time: 0.02s memory: 13112 kB returned value: 0
input:
```
<?

$string = "test test test test";
preg_replace('[^\s]', '', $string);
echo $string;

?>
```
output:
```
$string = "test test test test";
echo preg_replace('[^\s]', '', $string);
```

# 3: show clone input 102 days 11 hours ago Success

input:

<?

$string = "test test test test";
$a=preg_replace('[^\s]', '', $string);
echo $a;

?>

output:

$string = "test test test test";
echo preg_replace('[^\s]', '', $string);

# 2: hide show clone input 102 days 11 hours ago Success

result: Success time: 0.02s memory: 13112 kB returned value: 0
input:
```
<?

$string = "test test test test";
echo preg_replace('[^\s]', '', $string);

?>
```
output:
```
$string = "test test test test";
echo preg_replace('[^\s]', '', $string);
```
# 1: hide show clone input 104 days 2 hours ago Success

result: Success time: 0.02s memory: 13112 kB returned value: 0

input: no
output:
```
$string = "test test test test";
echo preg_replace('[^\s]', '', $string);
```