php试题与答案(二)

37.在str_replace(1,2,3)函数中1 2 3 所表明的名称是(  )     B   php  A  "取代字符串","被取代字符串","来源字符串"    mysql B  "被取代字符串","取代字符串","来源字符串"    sql C  "来源字符串","取代字符串","被取代字符串"   数据库  D  "来源字符串","被取代字符串","取代字符串"     数组  
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