Ideone.com

language:	PHP (php 5.4.4)
date:	908 days 20 hours ago
link:
visibility:	public private user's deleted

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<?php
        $str = 'oneTwoThreeFour';
        preg_match_all('/[A-Z]?[a-z]+/', $str, $matches);
        print_r($matches[0]);
?>

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# 5 # 4 # 3 # 2 # 1

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# 5: hide show clone input 12 days 20 hours ago Success

result: Success time: 0.01s memory: 20568 kB returned value: 0
input:
```
theFirstText_WithBad12CamelCaseNaturePDF"
```
output:
```
Array
(
    [0] => one
    [1] => Two
    [2] => Three
    [3] => Four
)
```
# 4: hide show clone input 223 days 1 hour ago Success

result: Success time: 0.02s memory: 13112 kB returned value: 0
input:
```
$str=theFirstText_WithBad12CamelCaseNaturePDF"
```
output:
```
Array
(
    [0] => one
    [1] => Two
    [2] => Three
    [3] => Four
)
```
# 3: hide show clone input 223 days 1 hour ago Success

result: Success time: 0.02s memory: 13112 kB returned value: 0
input:
```
theFirstText_WithBad12CamelCaseNaturePDF"
```
output:
```
Array
(
    [0] => one
    [1] => Two
    [2] => Three
    [3] => Four
)
```
# 2: hide show clone input 340 days 0 hours ago Success

result: Success time: 0.02s memory: 13112 kB returned value: 0
# 1: hide show clone input 908 days 20 hours ago Success

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

input: no
output:
```
Array
(
    [0] => one
    [1] => Two
    [2] => Three
    [3] => Four
)
```

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