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                            [TOC]


## 替換單個
```
$res = preg_replace("/abc/","ab-","abcdec");
print_r($res); // ab-dec
```

## 替換多個
```
$res1 = preg_replace(["/abc/","/dec/"],["ab-","de-"],"abcdec");
print_r($res1); // ab-de-
```

## 用匹配的值替換
```
$res = preg_replace("/(ab)c/",'--${1}--',"cabc");
print_r($res); // c--ab--
```

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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