php is variable a number

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Lilli
16 May 2016
1$var_num = "1";
2$var_str = "Hello World";
3
4var_dump( is_numeric($var_num), is_numeric($var_str) );
5
6/* 
7Output -
8 bool(true)
9 bool(false)
10*/
Isla
18 Mar 2019
1if(is_numeric($what_am_i)){
2	//true
3}
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