Isset
If exist php
3
Php see if undefined
2
Isset js
1
- 3 votes266 views1 answer
- 3 votes256 views2 answers
- 1 vote242 views1 answer
- -1 vote306 views2 answers
- 14 votes287 views3 answers
- 2 votes244 views2 answers
- 0 vote257 views7 answers
- 0 vote288 views2 answers
- 32 votes263 views6 answers
- 0 vote241 views1 answer