PHP substr_replace() 函数的语法和参数
PHP substr_replace() 函数语法
substr_replace(string,replacement,start,length)
| 参数 | 描述 |
|---|---|
| string | 必需。规定要检查的字符串。 |
| replacement | 必需。规定要插入的字符串。 |
| start |
必需。规定在字符串的何处开始替换。
|
| charlist |
可选。规定要替换多少个字符。
|
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