php中的字符串如何对负值进行判断
这篇文章主要介绍了php字符串操作针对负值的判断,实例分析了php字符串操作中针对负值的判断技巧,需要的朋友可以参考下
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运行结果输出如下:
1
int -1
boolean true
总结:
字符串 '-1'的逻辑值是true;
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