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<?php $arr = ['one', 'two', 'three', 'foo', 'bar', 'etc']; $prev = ''; foreach ($arr as &$ref) { $ref = $prev . $ref; $prev = $ref; } var_export($arr); $arr = ['one', 'two', 'three', 'foo', 'bar', 'etc']; var_export( array_map( function($v) { static $prev = ''; $v = $prev . $v; $prev = $v; return $v; }, $arr ) );
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1
array ( 0 => 'one', 1 => 'onetwo', 2 => 'onetwothree', 3 => 'onetwothreefoo', 4 => 'onetwothreefoobar', 5 => 'onetwothreefoobaretc', )array ( 0 => 'one', 1 => 'onetwo', 2 => 'onetwothree', 3 => 'onetwothreefoo', 4 => 'onetwothreefoobar', 5 => 'onetwothreefoobaretc', )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.3.28
/bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28)
Process exited with code 1.
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90.07 ms | 407 KiB | 5 Q