3v4l.org

run code in 300+ PHP versions simultaneously

@ 2015-12-20T11:50:58Z

<?php

$x = ' \pm                  \cap                \diamond                    \oplus      
 \mp                  \cup                \bigtriangleup              \ominus     
 \times               \uplus              \bigtriangledown            \otimes     
 \div                 \sqcap              \triangleleft               \oslash     
 \ast                 \sqcup              \triangleright              \odot       
 \star                \vee                \lhd                    \bigcirc    
 \circ                \wedge              \rhd                    \dagger     
 \bullet              \setminus           \unlhd              \ddagger    
 \cdot                \wr                 \unrhd              \amalg      
';

$x = array_filter(preg_split('/\s+/', $x));
sort($x);
foreach ($x as $xx) {
    var_export($xx);echo ",\n";
}

var_export: documentation ( source)
array_filter: documentation ( source)
sort: documentation ( source)
preg_split: documentation ( source)

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